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Umana, E., Mills, C., Norman-Bruce, H., Wilson, K., Mitchell, H., McFetridge, L., Woolfall, K., Lynn, F. A., McKeeman, G., Foster, S., Barrett, M., Roland, D., Lyttle, M. D., Watson, C., Waterfield, T.
BMJ Open, 21.09.2023
Tilføjet 21.09.2023
IntroductionFebrile infants 90 days and younger are at risk of invasive bacterial infections (bacteraemia and meningitis) and urinary tract infections. Together this is previously termed serious bacterial infection with an incidence of approximately 10–20%. The National Institute for Health and Care Excellence guidance advocates a cautious approach with most infants requiring septic screening, parenteral broad-spectrum antibiotics and hospital admission. Internationally, variations exist in the approach to febrile infants, with European and North American guidance advocating a tailored approach based on clinical features and biomarker testing. None of the available international clinical decision aids (CDAs) has been validated in the UK and Irish cohorts. The aim of the Febrile Infant Diagnostic Assessment and Outcome (FIDO) Study is to prospectively validate a range of CDAs in a UK and Irish population including CDAs that use procalcitonin testing. Methods and analysisThe FIDO Study is a prospective multicentre mixed-methods cohort study conducted in UK and Irish hospitals. All infants aged 90 days and younger presenting with fever or history of fever (≥38°C) are eligible for inclusion. Infants will receive standard emergency clinical care without delay. Clinical data and blood samples will be collected, and consent will be obtained at the earliest appropriate opportunity using research without prior consent methodology. The performance and cost-effectiveness of CDAs will be assessed. An embedded qualitative study will explore clinician and caregiver views on different approaches to care and perceptions of risk. Ethics and disseminationThis study was reviewed and approved by the Office for Research Ethics Committees Northern Ireland-Health and Social Care Research Ethics Committee B, Public Benefit and Privacy Panel for Health and Social Care Scotland, and Children’s Health Ireland Research and Ethics Committee Ireland. The results of this study will be presented at academic conferences and in peer-reviewed publications. Trial registration numberNCT05259683.
Læs mere Tjek på PubMedBMC Infectious Diseases, 21.09.2023
Tilføjet 21.09.2023
Abstract The objective of the study was to analyze the spatial distribution of vaccination coverage of bacterial meningitis vaccine: A, C, W and Y (menacwy) and identify the association between socioeconomic and social environment factors with menacwy vaccine coverage among adolescents in the state of Minas Gerais (MG), Brazil. This is an ecological, mixed study, conducted with secondary data from the 853 municipalities of the State of MG, Brazil, from 2020 to 2022, provided by the information system of the National Immunization Program. For spatial statistical analysis, spatial dependence and the presence of spatial clusters formed by municipalities with high and low vaccination coverage of Menacwy were evaluated. In the year 2021, MG presented the largest vaccination coverage (60.58%) since the introduction of the Menacwy vaccine by the PNI. Regarding the analysis of global regressions, it is observed that for the year 2020, as the MG Index of Social Responsibility-Health increased and MG Index of Social Responsibility—Public Security increased, increased the vaccination coverage of the municipalities of the Menacwy vaccine. Finally, compared to 2021, similar association was observed in relation to the proportion of the population served by the Family Health Strategy of the municipalities of the state of MG and per capita spending on education activities: as this indicator increased, with increased coverage of the Vaccine of the Menacwy vaccine of the state municipalities. They reinforce the importance of assessing the quality-of-care management and health surveillance system, professional training, and damage reduction to populations, especially adolescents.
Læs mere Tjek på PubMedBMC Infectious Diseases, 19.09.2023
Tilføjet 19.09.2023
Abstract The objective of the study was to analyze the spatial distribution of vaccination coverage of bacterial meningitis vaccine: A, C, W and Y (menacwy) and identify the association between socioeconomic and social environment factors with menacwy vaccine coverage among adolescents in the state of Minas Gerais (MG), Brazil. This is an ecological, mixed study, conducted with secondary data from the 853 municipalities of the State of MG, Brazil, from 2020 to 2022, provided by the information system of the National Immunization Program. For spatial statistical analysis, spatial dependence and the presence of spatial clusters formed by municipalities with high and low vaccination coverage of Menacwy were evaluated. In the year 2021, MG presented the largest vaccination coverage (60.58%) since the introduction of the Menacwy vaccine by the PNI. Regarding the analysis of global regressions, it is observed that for the year 2020, as the MG Index of Social Responsibility-Health increased and MG Index of Social Responsibility—Public Security increased, increased the vaccination coverage of the municipalities of the Menacwy vaccine. Finally, compared to 2021, similar association was observed in relation to the proportion of the population served by the Family Health Strategy of the municipalities of the state of MG and per capita spending on education activities: as this indicator increased, with increased coverage of the Vaccine of the Menacwy vaccine of the state municipalities. They reinforce the importance of assessing the quality-of-care management and health surveillance system, professional training, and damage reduction to populations, especially adolescents.
Læs mere Tjek på PubMedMikaël de Lorenzi-Tognon, Vladimir Lazarevic, Nadia Gaïa, Chiraz Chaabane, Abdessalam Cherkaoui, Gesuele Renzi, Jacques Schrenzel
Clinical Microbiology and Infection, 16.09.2023
Tilføjet 16.09.2023
Bacterial meningitis is defined clinically by a triad that includes fever, neck stiffness and altered mental status and represents a medical emergency with a high mortality rate. Its worldwide incidence in high-income countries is estimated at 80/100,000 individuals per year. Delayed antimicrobial therapy increases mortality and neurological sequelae for survivors. Rapid diagnostic methods were developed to identify the most common pathogens responsible for community-acquired bacterial meningitis.
Læs mere Tjek på PubMedFortin, Olivier; Mulkey, Sarah B.
Current Opinion in Infectious Diseases, 15.09.2023
Tilføjet 15.09.2023
Purpose of review Congenital infections are a major cause of childhood multidomain neurodevelopmental disabilities. They contribute to a range of structural brain abnormalities that can cause severe neurodevelopmental impairment, cerebral palsy, epilepsy, and neurosensory impairments. New congenital infections and global viral pandemics have emerged, with some affecting the developing brain and causing neurodevelopmental concerns. This review aims to provide current understanding of fetal infections and their impact on neurodevelopment. Recent findings There are a growing list of congenital infections causing neurodevelopmental issues, including cytomegalovirus, Zika virus, syphilis, rubella, lymphocytic choriomeningitis virus, and toxoplasmosis. Fetal exposure to maternal SARS-CoV-2 may also pose risk to the developing brain and impact neurodevelopmental outcomes, although studies have conflicting results. As Zika virus was a recently identified congenital infection, there are several new reports on child neurodevelopment in the Caribbean and Central and South America. For many congenital infections, children with in-utero exposure, even if asymptomatic at birth, may have neurodevelopmental concerns manifest over time. Summary Congenital infections should be considered in the differential diagnosis of a child with neurodevelopmental impairments. Detailed pregnancy history, exposure risk, and testing should guide diagnosis and multidisciplinary evaluation. Children with congenital infections should have long-term follow-up to assess for neurodevelopmental delays and other neurosensory impairments. Children with confirmed delays or high-risk should be referred for rehabilitation therapies.
Læs mere Tjek på PubMedChakravarty, Jaya; Reddy, Sudheer; Gupta, Munesh K.; Tilak, Ragini; Diwaker, Chakra; Sundar, Shyam
AIDS, 8.09.2023
Tilføjet 8.09.2023
Objective: Cryptococcal meningitis (CM) is a leading cause of mortality in people living with HIV (PLHIV). Despite recommendation by the National programme, Cryptococcal Antigen (CrAg) screening in PLHIV with CD4
Læs mere Tjek på PubMedInfection, 3.09.2023
Tilføjet 3.09.2023
Abstract Purpose There is an overlap in the cerebrospinal fluid (CSF) characteristics of patients presenting with different etiologies of CSF pleocytosis. Here, we characterized patients with CSF pleocytosis treated in a large hospital. Methods A retrospective cohort study of 1150 patients with an elevated CSF leukocyte count > 5 cells/µl treated at a university hospital in Germany from January 2015 to December 2017 was performed. Information on clinical presentation, laboratory parameters, diagnosis and outcome was collected. Clinical and laboratory features were tested for their potential to differentiate between bacterial meningitis (BM) and other causes of CSF pleocytosis. Results The most common etiologies of CSF pleocytosis were CNS infections (34%: 20% with detected pathogen, 14% without), autoimmune (21%) and neoplastic diseases (16%). CSF cell count was higher in CNS infections with detected pathogen (median 82 cells/µl) compared to autoimmune (11 cells/µl, p = 0.001), neoplastic diseases (19 cells/µl, p = 0.01) and other causes (11 cells/µl, p 100 cells/µl, CSF protein > 100 mg/dl, CRP > 5 mg/dl, elevated white blood cell count, abnormal mental status and nuchal rigidity are important indicators. The CHANCE score identified patients with BM with high sensitivity (92.1%) and specificity (90.9%) (derivation cohort: AUC: 0.955, validation cohort: AUC: 0.956). Conclusion Overall, the most common causes for CSF pleocytosis include infectious, neoplastic or autoimmune CNS diseases in ~ 70% of patients. The CHANCE score could be of help to identify patients with high likelihood of BM and support clinical decision making.
Læs mere Tjek på PubMedInfection, 1.09.2023
Tilføjet 1.09.2023
Abstract Purpose There is an overlap in the cerebrospinal fluid (CSF) characteristics of patients presenting with different etiologies of CSF pleocytosis. Here, we characterized patients with CSF pleocytosis treated in a large hospital. Methods A retrospective cohort study of 1150 patients with an elevated CSF leukocyte count > 5 cells/µl treated at a university hospital in Germany from January 2015 to December 2017 was performed. Information on clinical presentation, laboratory parameters, diagnosis and outcome was collected. Clinical and laboratory features were tested for their potential to differentiate between bacterial meningitis (BM) and other causes of CSF pleocytosis. Results The most common etiologies of CSF pleocytosis were CNS infections (34%: 20% with detected pathogen, 14% without), autoimmune (21%) and neoplastic diseases (16%). CSF cell count was higher in CNS infections with detected pathogen (median 82 cells/µl) compared to autoimmune (11 cells/µl, p = 0.001), neoplastic diseases (19 cells/µl, p = 0.01) and other causes (11 cells/µl, p 100 cells/µl, CSF protein > 100 mg/dl, CRP > 5 mg/dl, elevated white blood cell count, abnormal mental status and nuchal rigidity are important indicators. The CHANCE score identified patients with BM with high sensitivity (92.1%) and specificity (90.9%) (derivation cohort: AUC: 0.955, validation cohort: AUC: 0.956). Conclusion Overall, the most common causes for CSF pleocytosis include infectious, neoplastic or autoimmune CNS diseases in ~ 70% of patients. The CHANCE score could be of help to identify patients with high likelihood of BM and support clinical decision making.
Læs mere Tjek på PubMedHsiu‐Ling Lin, Hui‐Mei Chen, Chih‐Yen Lin, Cheng‐Chieh Chen
Tropical Medicine & International Health, 29.08.2023
Tilføjet 29.08.2023
Hui Wang, Yulu Fang, Yongtao Jia, Jiajie Tang, Changzheng Dong
PLoS One Infectious Diseases, 29.08.2023
Tilføjet 29.08.2023
by Hui Wang, Yulu Fang, Yongtao Jia, Jiajie Tang, Changzheng Dong Enterovirus B (EVB) is a common species of enterovirus, mainly consisting of Echovirus (Echo) and Coxsackievirus B (CVB). The population is generally susceptible to EVB, especially among children. Since the 21st century, EVB has been widely prevalent worldwide, and can cause serious diseases, such as viral meningitis, myocarditis, and neonatal sepsis. By using cryo-electron microscopy, the three-dimensional (3D) structures of EVB and their uncoating receptors (FcRn and CAR) have been determined, laying the foundation for the study of viral pathogenesis and therapeutic antibodies. A limited number of epitopes bound to neutralizing antibodies have also been determined. It is unclear whether additional epitopes are present or whether epitope mutations play a key role in molecular evolutionary history and epidemics, as in influenza and SARS-CoV-2. In the current study, the conformational epitopes of six representative EVB serotypes (E6, E11, E30, CVB1, CVB3 and CVB5) were systematically predicted by bioinformatics-based epitope prediction algorithm. We found that their epitopes were distributed into three clusters, where the VP1 BC loop, C-terminus and VP2 EF loop were the main regions of EVB epitopes. Among them, the VP1 BC loop and VP2 EF loop may be the key epitope regions that determined the use of the uncoating receptors. Further molecular evolution analysis based on the VP1 and genome sequences showed that the VP1 C-terminus and VP2 EF loop, as well as a potential “breathing epitope” VP1 N-terminus, were common mutation hotspot regions, suggesting that the emergence of evolutionary clades was driven by epitope mutations. Finally, footprints showed mutations were located on or near epitopes, while mutations on the receptor binding sites were rare. This suggested that EVB promotes viral epidemics by breaking the immune barrier through epitope mutations, but the mutations avoided the receptor binding sites. The bioinformatics study of EVB epitopes may provide important information for the monitoring and early warning of EVB epidemics and developing therapeutic antibodies.
Læs mere Tjek på PubMedClinical Infectious Diseases, 23.08.2023
Tilføjet 23.08.2023
AbstractBackgroundAmphotericin B is the gold standard treatment for severe mycoses. A new orally delivered, less-toxic formulation of amphotericin has been developed.MethodsIn our randomized clinical trial, we tested oral lipid nanocrystal (LNC) amphotericin B (MAT2203, Matinas Biopharma) vs intravenous (IV) amphotericin for human immunodeficiency virus–associated cryptococcal meningitis in 4 sequential cohorts. Two pilot cohorts assessed safety and tolerability (n = 10 each), and 2 cohorts assessed efficacy with/without 2 IV loading doses (n = 40 each). The experimental arm received 1.8 g/d oral LNC amphotericin through 2 weeks with 100 mg/kg/d flucytosine, then 1.2 g/d LNC amphotericin through 6 weeks. The randomized control arm (n = 41) received 7 days of IV amphotericin with flucytosine, then 7 days of fluconazole 1200 mg/d. The primary end point was cerebrospinal fluid (CSF) early fungicidal activity (EFA).ResultsWe randomized 80 participants to oral LNC amphotericin + flucytosine with (n = 40) and without (n = 40) 2 IV loading doses and 41 control participants to IV amphotericin + flucytosine. Mean EFA was 0.40 log10 colony-forming units (CFU)/mL/d for all-oral LNC amphotericin, 0.42 log10Cryptococcus CFU/mL/d for oral LNC amphotericin with IV loading doses, and 0.46 log10 CFU/mL/d for IV amphotericin controls. LNC amphotericin groups achieved 2-week CSF sterility in 63% (44 of 70) vs 68% (23 of 34) of controls. The 18-week survival was 85% (34 of 40) with all-oral LNC amphotericin, 90% (36 of 40) with oral LNC amphotericin given IV loading doses, and 85% (35 of 41) with IV amphotericin.Grade 3–4 laboratory adverse events occurred less frequently in LNC amphotericin groups (41%) than the IV amphotericin group (61%, P = .05), particularly for anemia (21% vs 44%; P = .01) and potassium (5% vs 17%; P = .04).ConclusionsThis new oral amphotericin B LNC formulation appears promising for cryptococcal meningitis with antifungal activity, similar survival, and less toxicity than IV amphotericin.Clinical Trials RegistrationNCT04031833.
Læs mere Tjek på PubMedBMC Infectious Diseases, 23.08.2023
Tilføjet 23.08.2023
Abstract Background Ralstonia is a genus of Gram-negative opportunistic bacteria that can survive in many kinds of solutions and cause a variety of infections. Ralstonia spp. have increasingly been isolated and reported to cause infections in recent years, thanks to the development of identification methods such as matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF MS) and gene sequencing. However, infections caused by Ralstonia insidiosa are still rare. Only a few cases of respiratory infections and bloodstream infections have been reported, none of which involved meningitis. To the best of our knowledge, this is the first reported case of meningitis caused by R. insidiosa worldwide. It is necessary to report and review this case. Case presentation We report a case of meningitis caused by R. insidiosa following lumbar surgery in China. The patient exhibited symptoms of headache, dizziness, and recurrent fever. The fever remained unresolved after empiric antibiotic therapy with intravenous cefotaxime and vancomycin in the initial days. Cerebrospinal fluid (CSF) culture yielded Gram-negative non-fermentative bacteria, which were identified as R. insidiosa. As there was a lack of antibiotic susceptibility testing results, clinical pharmacists conducted a literature review to select appropriate antibiotics. The patient’s condition improved after receiving effective treatment with intravenous cefepime and levofloxacin. Conclusions Uncommon pathogens, such as R. insidiosa, should be considered in postoperative central nervous system (CNS) infections, particularly in cases with unsatisfactory results of empiric anti-infective therapy. This is the first reported case of meningitis caused by R. insidiosa worldwide. MALDI-TOF MS provides rapid and accurate identification of this pathogen. The antibiotic susceptibility testing results of R. indiosa may be interpreted based on the breakpoints for Pseudomonas spp., Burkholderia cepacia spp., and Acinetobacter spp. Our case presents a potential option for empiric therapy against this pathogen, at least in the local area. This is crucial to minimize the severity and mortality rates associated with meningitis. Standardized antibiotic susceptibility testing and breakpoints for the Ralstonia genus should be established in the future as cases accumulate. Cefepime and levofloxacin may be potential antibiotics for infections caused by R. indiosa.
Læs mere Tjek på PubMedJournal of Infectious Diseases, 23.08.2023
Tilføjet 23.08.2023
AbstractBackgroundCalcitonin gene-related peptide (CGRP), an immunomodulatory neuropeptide, is important for regulating pain transmission, vasodilation, and the inflammatory response. However, the molecular mechanisms of the CGRP-mediated immune response remain unknown.MethodsThe effects of CGRP on bacterial meningitis (BM) and the underlying mechanisms were investigated in BM mice in vivo and macrophages in vitro.ResultsPeripheral injection of CGRP-attenuated cytokine storms and protected mice from fatal pneumococcal meningitis, marked by increased bacterial clearance, improved neuroethology, and reduced mortality. When the underlying mechanisms were investigated, we found that CGRP induces proteasome-dependent degradation of MHC-II in macrophages and then inhibits CD4+ T cell activation. MARCH1 was identified as an E3 ligase that can be induced by CGRP engagement and promote K48-linked ubiquitination and degradation of MHC-II in macrophages. These results provide new insights into neuropeptide CGRP-mediated immune regulation mechanisms.ConclusionsTherefore, we conclude that targeting the nervous system and manipulating neuroimmune communication is a promising strategy for treating intracranial infections like bacterial meningitis.
Læs mere Tjek på PubMedJournal of Infectious Diseases, 23.08.2023
Tilføjet 23.08.2023
AbstractHepatitis B Virus is a major driver of infectious disease mortality. Curative therapies are needed and ideally should induce CD8 T cell-mediated clearance of infected hepatocytes plus anti-surface antigen antibodies (anti-HBs) to neutralize residual virus. We developed a novel therapeutic vaccine using non-replicating arenavirus vectors. Antigens were screened for genotype conservation and magnitude and genotype reactivity of T cell response, then cloned into Pichinde virus vectors (rPICV, GS-2829) and lymphocytic choriomeningitis virus vectors (rLCMV, GS-6779). Alternating immunizations with rPICV and rLCMV induced high magnitude HBV T cell responses, with PICV vectors driving high anti-HBs titers. Dose schedule optimization in macaques achieved strong polyfunctional CD8 T cell responses with balanced specificity for core, HBsAg, and polymerase and high titer anti-HBs. In AAV-HBV mice, GS-2829 and GS-6779 were efficacious in animals with low pre-treatment serum HBsAg. Based on these results, GS-2829 and GS-6779 could become central components of cure regimens.
Læs mere Tjek på PubMedEmerging Infectious Diseases, 19.08.2023
Tilføjet 19.08.2023
Dispatch - Lymphocytic Choriomeningitis Virus in Person Living with HIV, Connecticut, USA, 2021
Læs mere Tjek på PubMedClinical Infectious Diseases, 6.08.2023
Tilføjet 6.08.2023
AbstractBackgroundPowassan virus (POWV) is an emerging arthropod-borne flavivirus, transmitted by Ixodes spp ticks, which has been associated with neuroinvasive disease and poor outcomes.MethodsA retrospective study was conducted at Mayo Clinic from 2013 to 2022. We included clinical and epidemiological data of probable and confirmed neuroinvasive POWV cases.ResultsSixteen patients with neuroinvasive POWV were identified with a median age of 63.2 years and 62.5% were male. Six patients presented with rhombencephalitis, four with isolated meningitis, three with meningoencephalitis, two with meningoencephalomyelitis, and one with opsoclonus myoclonus syndrome. A median time of 18 days was observed between symptom onset and diagnosis. Cerebrospinal fluid analysis showed lymphocytic pleocytosis with elevated protein and normal glucose in the majority of patients. Mortality within 90 days occurred in three cases (18.8%), and residual neurological deficits were seen in eight (72.7%) survivors.ConclusionsTo our knowledge, this is the largest case series of patients with neuroinvasive POWV infection. We highlight the importance of a high clinical suspicion among patients that live in or travel to high-risk areas during the spring to fall months. Our data show high morbidity and mortality among patients with neuroinvasive disease.
Læs mere Tjek på PubMedDam Khan, Shola-Able Thomas, Peggy-Estelle Tientcheu, Sambou M. S. Suso, Christopher Dupont, Brenda Kwambana-Adams, Nuredin Ibrahim Mohammed, Mark P. Nicol, Martin Antonio
PLoS One Infectious Diseases, 4.08.2023
Tilføjet 4.08.2023
by Dam Khan, Shola-Able Thomas, Peggy-Estelle Tientcheu, Sambou M. S. Suso, Christopher Dupont, Brenda Kwambana-Adams, Nuredin Ibrahim Mohammed, Mark P. Nicol, Martin Antonio Introduction Several important human pathogens that cause life-threatening infections are asymptomatically carried in the Nasopharynx/Oropharynx (NP/OP). DNA extraction is a prerequisite for most culture-independent techniques used to identify pathogens in the NP/OP. However, components of DNA extraction kits differ thereby giving rise to differences in performance. We compared the DNA concentration and the detection of three pathogens in the NP/OP using the discontinued DNeasy PowerSoil Kit (Kit DP) and the DNeasy PowerLyzer PowerSoil Kit (Kit DPP). Methods DNA was extracted from the same set of 103 NP/OP samples using the two kits. DNA concentration was measured using the Qubit 2.0 Fluorometer. Real-time Polymerase Chain reaction (RT-PCR) was done using the QuantStudio 7-flex system to detect three pathogens: S. pneumoniae, H. influenzae, and N. meningitidis. Bland-Altman statistics and plots were used to determine the threshold cycle (Ct) value agreement for the two kits. Results The average DNA concentration from kit DPP was higher than Kit DP; 1235.6 ng/ml (SD = 1368.3) vs 884.9 ng/ml (SD = 1095.3), p = 0.002. Using a Ct value cutoff of 40 for positivity, the concordance for the presence of S. pneumoniae was 82% (84/102); 94%(96/103) for N. meningitidis and 92%(95/103) for H. influenzae. Kit DP proportionately resulted in higher Ct values than Kit DPP for all pathogens. The Ct value bias of measurement for S. pneumoniae was +2.4 (95% CI, 1.9–3.0), +1.4 (95% CI, 0.9–1.9) for N. meningitidis and +1.4 (95% CI, 0.2–2.5) for H. influenzae. Conclusion The higher DNA concentration obtained using kit DPP could increase the chances of recovering low abundant bacteria. The PCR results were reproducible for more than 90% of the samples for the gram-negative H. influenzae and N. meningitidis. Ct value variations of the kits must be taken into consideration when comparing studies that have used the two kits.
Læs mere Tjek på PubMedAmerican Journal of Tropical Medicine and Hygiene, 2.08.2023
Tilføjet 2.08.2023
Journal Name: The American Journal of Tropical Medicine and Hygiene Volume: 109 Issue: 2 Pages: 450-459
Læs mere Tjek på PubMedSarah U Morton, Christine Hehnly, Kathy Burgoine, Paddy Ssentongo, Jessica E Ericson, M Senthil Kumar, Cornelia Hagmann, Claudio Fronterre, Jasmine Smith, Mercedeh Movassagh, Nicholas Streck, Lisa M Bebell, Joel Bazira, Elias Kumbakumba, Francis Bajunirwe, Ronald Mulondo, Edith Mbabazi-Kabachelor, Brian K Nsubuga, Davis Natukwatsa, Esther Nalule, Joshua Magombe, Tim Erickson, Joseph Ngonzi, Moses Ochora, Peter Olupot-Olupot, Justin Onen, Peter Ssenyonga, John Mugamba, Benjamin C Warf, Abhaya V Kulkarni, Jessica Lane, Andrew J Whalen, Lijun Zhang, Kathryn Sheldon, Frederick A Meier, Julius Kiwanuka, James R Broach, Joseph N Paulson, Steven J Schiff
The Lancet Microbe, 2.08.2023
Tilføjet 2.08.2023
Paenibacillus spp causes neonatal sepsis and meningitis in Uganda and is the dominant cause of subsequent postinfectious hydrocephalus. There was no evidence of transplacental transmission, and geographical evidence was consistent with an environmental source of neonatal infection. Further work is needed to identify routes of infection and optimise treatment of neonatal Paenibacillus spp infection to lessen the burden of morbidity and mortality.
Læs mere Tjek på PubMedChavanet, P., Fournel, I., Bourredjem, A., Piroth, L., Blot, M., Sixt, T., Binquet, C.
BMJ Open, 26.07.2023
Tilføjet 26.07.2023
BackgroundThe leading cause of acute bacterial meningitis in adults is Streptococcus pneumoniae. This infection is associated with high rates of mortality and morbidity related, among other factors, to the excessive host response to the pneumococcal lysis. Experimental in vitro and in vivo data show that the combination of corticosteroids/third-generation cephalosporins and the non-lytic antibiotic, daptomycin, has synergistic effects with (1) a rapid cerebrospinal fluid sterilisation, (2) less brain damages and (3) less loss of cognitive performances. Despite these encouraging results, daptomycin has never been evaluated in adult patients with pneumococcal meningitis. Methods and analysisThe AddaMAP trial is a phase II, open-label, Simon’s two-stage, multicentre trial that has been designed to assess the efficacy and safety of adding daptomycin (10 mg/kg/d for 8 days) to the recommended treatment (corticosteroids+third generation cephalosporin) in adults with confirmed pneumococcal meningitis. The main endpoint is the disability-free survival (defined as modified Rankin Scale mRS≤2) at day 30. Secondary outcomes are overall mortality, disability at D30 and D90 (mRS, Glasgow Coma Scale and Glasgow Outcome Scales, mini-mental score), hearing loss (Hearing Handicap Inventory Test at D30 and D90, routine audiometric test and Hearing-it test at D30), and quality of life (12-item Short Form Survey and WHO QOL BREF). Seventy-two analysable patients are required. Ethics and disseminationThe study protocol was approved by the Institutional Review Board of the IDF 1 of the ethics committee on 16 January 2018, and authorisation was obtained from the Agence Nationale de Securité des Médicaments et des Produits de Santé on 22 September 2017. The results will be submitted for publication in a peer-reviewed journal. Trial registration numberNCT03480191.
Læs mere Tjek på PubMedEmerging Infectious Diseases, 21.07.2023
Tilføjet 21.07.2023
Dispatch - Mycobacterium abscessus Meningitis Associated with Stem Cell Treatment During Medical Tourism
Læs mere Tjek på PubMedBMC Infectious Diseases, 12.07.2023
Tilføjet 12.07.2023
Abstract Background Predicting the short-term prognosis and severity of tuberculosis meningitis (TBM) patients without HIV infection can be challenging, and there have been no prior studies examining the neutrophil lymphocyte ratio (NLR) as a potential predictor of short-term prognosis or its relationship to TBM severity. We hypothesized that NLR might serve as an independent indicator of short-term prognostic significance and that there might be a correlation between NLR and severity. The aim of this study was to investigate the role of NLR as a predictor of short-term prognosis and its relationship to severity of tuberculosis meningitis patients without HIV infection. Methods We retrospectively collected data from patients diagnosed with TBM in the West China Hospital, Sichuan University, from the period between January 1st, 2018 and August 1st, 2019. Multivariable analysis was executed by the logistic regression model to verify the independence of the 28-day mortality, the discriminative power for predicting short-term prognosis was evaluated using a Receiver Operating Characteristic (ROC) curve, survival outcomes were analyzed using the Kaplan-Meier method and Pearson’s correlation analysis was performed to discuss correlation between NLR and the severity of TBM. Results We collected data from 231 TBM patients without HIV infection. 68 (29.4%) patients are classified as stage (I) 138(59.8%) patients are stage (II) 25(10.8%) patients are stage (III) 16(6.9%) patients died during the follow-up period of 28 days. By multiple logistic regression analyses, the NLR (OR = 1.065, 95% CI = 1.001–1.133, P = 0.045), peripheral neurological deficit (OR 7.335, 95% CI 1.964–27.385, P = 0 0.003) and hydrocephalus (OR 11.338, 95% CI 2.397–53.633, P = 0 0.002) are independent risk factors of 28-day mortality. The area under the ROC curve (AUC) for predicting short prognosis using NLR is 0.683 (95% CI 0.540–0.826, P = 0.015), the optimal cutoff value is 9.99(sensitivity: 56.3%, specificity: 80.9%). The Kaplan-Meier analysis demonstrated that patients with higher NLR(>9.99) had significantly worse survival outcomes(P
Læs mere Tjek på PubMedBMC Infectious Diseases, 6.07.2023
Tilføjet 6.07.2023
Abstract Background Predicting the short-term prognosis and severity of tuberculosis meningitis (TBM) patients without HIV infection can be challenging, and there have been no prior studies examining the neutrophil lymphocyte ratio (NLR) as a potential predictor of short-term prognosis or its relationship to TBM severity. We hypothesized that NLR might serve as an independent indicator of short-term prognostic significance and that there might be a correlation between NLR and severity. The aim of this study was to investigate the role of NLR as a predictor of short-term prognosis and its relationship to severity of tuberculosis meningitis patients without HIV infection. Methods We retrospectively collected data from patients diagnosed with TBM in the West China Hospital, Sichuan University, from the period between January 1st, 2018 and August 1st, 2019. Multivariable analysis was executed by the logistic regression model to verify the independence of the 28-day mortality, the discriminative power for predicting short-term prognosis was evaluated using a Receiver Operating Characteristic (ROC) curve, survival outcomes were analyzed using the Kaplan-Meier method and Pearson’s correlation analysis was performed to discuss correlation between NLR and the severity of TBM. Results We collected data from 231 TBM patients without HIV infection. 68 (29.4%) patients are classified as stage (I) 138(59.8%) patients are stage (II) 25(10.8%) patients are stage (III) 16(6.9%) patients died during the follow-up period of 28 days. By multiple logistic regression analyses, the NLR (OR = 1.065, 95% CI = 1.001–1.133, P = 0.045), peripheral neurological deficit (OR 7.335, 95% CI 1.964–27.385, P = 0 0.003) and hydrocephalus (OR 11.338, 95% CI 2.397–53.633, P = 0 0.002) are independent risk factors of 28-day mortality. The area under the ROC curve (AUC) for predicting short prognosis using NLR is 0.683 (95% CI 0.540–0.826, P = 0.015), the optimal cutoff value is 9.99(sensitivity: 56.3%, specificity: 80.9%). The Kaplan-Meier analysis demonstrated that patients with higher NLR(>9.99) had significantly worse survival outcomes(P
Læs mere Tjek på PubMedStephen Mac, Gerald Evans, Eleanor Pullenayegum, Samir N. Patel, Beate Sander
PLoS One Infectious Diseases, 23.06.2023
Tilføjet 23.06.2023
by Stephen Mac, Gerald Evans, Eleanor Pullenayegum, Samir N. Patel, Beate Sander Background The objective of this study was to estimate the economic burden attributable to laboratory-confirmed Lyme disease (LD) in Ontario, Canada and assess health outcomes associated with LD. Method We conducted a cohort study using laboratory-confirmed LD cases accrued between 2006 and 2018. The exposed cohort was matched 1:3 to the unexposed cohort using a combination of hard and propensity score matching. We used phase-of-care costing methods to calculate attributable costs for four phases of illness: pre-diagnosis, acute care, post-acute care, and continuing care in 2018 Canadian dollars. We used ICD-10-CA and OHIP billing codes to identify emergency department visits, physician billings and hospitalizations related to LD sequelae to assess health outcomes. Results A total of 2,808 cases were identified with a mean age of 46.5 (20.7) years and 44% female. Within 30-days, 404 (14.3%) cases required an ED visit and 63 (2.4%) cases required hospitalization. The mean (95% CI) total costs for LD cases in pre-diagnosis, acute, and post-acute care phases were $209 ($181, 238), $1,084 ($956, $1,212), and $1,714 ($1,499, $1,927), respectively. The highest mean attributable 10-day cost was $275 ($231, $319) during acute care. At 1-year post-infection, LD increased the relative risk of nerve palsies by 62 (20, 197), and polyneuropathy by 24 (3.0, 190). LD resulted in 16 Lyme meningitis events vs. 0 events in the unexposed. Conclusion Individuals with laboratory-confirmed LD have increased healthcare resource use pre-diagnosis and up to six months post-diagnosis, and were more likely to seek healthcare services related to LD sequelae.
Læs mere Tjek på PubMedAcharya, S., Allam, R. R., Karanjkar, V. K., Rathod, D., Mahajan, R., Deshpande, P., Palkar, A., Todmal, S., Koli, S., Dhande, S., Dale, J., Yeldandi, V. V., Harshana, A., Agarwal, R., Upadhyaya, S., Nyendak, M.
BMJ Open, 23.06.2023
Tilføjet 23.06.2023
ObjectivesTo describe the implementation of screening for cryptococcal antigenaemia by point-of-care (POC) serum cryptococcal antigen (CrAg) lateral flow assay, measure the prevalence and factors associated with serum cryptococcal antigenaemia in the routine programmatic setting. DesignCross-sectional study. SettingSeventeen publicly funded antiretroviral therapy (ART) centres in Mumbai, India. ParticipantsSerum CrAg screening was offered to all adolescents (>10 years of age) and adults with advanced HIV disease (AHD) (CD4
Læs mere Tjek på PubMedBMC Infectious Diseases, 16.06.2023
Tilføjet 16.06.2023
Abstract Cryptococcal meningoencephalitis can occur in both previously healthy and immunocompromised hosts. Here, we describe a 55 year-old HIV-negative male with no known prior medical problems, who presented with three months of worsening headaches, confusion, and memory changes without fever. Magnetic resonance imaging of the brain demonstrated bilateral enlargement/enhancement of the choroid plexi, with hydrocephalus, temporal and occipital horn entrapments, as well as marked periventricular transependymal cerebrospinal fluid (CSF) seepage. CSF analysis yielded a lymphocytic pleocytosis and cryptococcal antigen titer of 1:160 but sterile fungal cultures. Despite standard antifungal therapy and CSF drainage, the patient had worsening confusion and persistently elevated intracranial pressures. External ventricular drainage led to improved mental status but only with valve settings at negative values. Ventriculoperitoneal shunt placement could thus not be considered due to a requirement for drainage into the positive pressure venous system. Due to this persistent CSF inflammation and cerebral circulation obstruction, the patient required transfer to the National Institute of Health. He was treated for cryptococcal post-infectious inflammatory response syndrome with pulse-taper corticosteroid therapy, with resultant reductions in CSF pressures along with decreased protein and obstructive material, allowing successful shunt placement. After tapering of corticosteroids, the patient recovered without sequelae. This case highlights (1) the necessity to consider cryptococcal meningitis as a rare cause of neurological deterioration in the absence of fever even in apparently immunocompetent individuals and (2) the potential for obstructive phenomena from inflammatory sequelae and the prompt response to corticosteroid therapy.
Læs mere Tjek på PubMedBMC Infectious Diseases, 15.06.2023
Tilføjet 15.06.2023
Abstract Cryptococcal meningoencephalitis can occur in both previously healthy and immunocompromised hosts. Here, we describe a 55 year-old HIV-negative male with no known prior medical problems, who presented with three months of worsening headaches, confusion, and memory changes without fever. Magnetic resonance imaging of the brain demonstrated bilateral enlargement/enhancement of the choroid plexi, with hydrocephalus, temporal and occipital horn entrapments, as well as marked periventricular transependymal cerebrospinal fluid (CSF) seepage. CSF analysis yielded a lymphocytic pleocytosis and cryptococcal antigen titer of 1:160 but sterile fungal cultures. Despite standard antifungal therapy and CSF drainage, the patient had worsening confusion and persistently elevated intracranial pressures. External ventricular drainage led to improved mental status but only with valve settings at negative values. Ventriculoperitoneal shunt placement could thus not be considered due to a requirement for drainage into the positive pressure venous system. Due to this persistent CSF inflammation and cerebral circulation obstruction, the patient required transfer to the National Institute of Health. He was treated for cryptococcal post-infectious inflammatory response syndrome with pulse-taper corticosteroid therapy, with resultant reductions in CSF pressures along with decreased protein and obstructive material, allowing successful shunt placement. After tapering of corticosteroids, the patient recovered without sequelae. This case highlights (1) the necessity to consider cryptococcal meningitis as a rare cause of neurological deterioration in the absence of fever even in apparently immunocompetent individuals and (2) the potential for obstructive phenomena from inflammatory sequelae and the prompt response to corticosteroid therapy.
Læs mere Tjek på PubMedBMC Infectious Diseases, 15.06.2023
Tilføjet 15.06.2023
Abstract Background Acute encephalitis syndrome (AES) differs in its spatio-temporal distribution in Vietnam with the highest incidence seen during the summer months in the northern provinces. AES has multiple aetiologies, and the cause remains unknown in many cases. While vector-borne disease such as Japanese encephalitis and dengue virus and non-vector-borne diseases such as influenza and enterovirus show evidence of seasonality, associations with climate variables and the spatio-temporal distribution in Vietnam differs between these. The aim of this study was therefore to understand the spatio-temporal distribution of, and risk factors for AES in Vietnam to help hypothesise the aetiology. Methods The number of monthly cases per province for AES, meningitis and diseases including dengue fever; influenza-like-illness (ILI); hand, foot, and mouth disease (HFMD); and Streptococcus suis were obtained from the General Department for Preventive Medicine (GDPM) from 1998–2016. Covariates including climate, normalized difference vegetation index (NDVI), elevation, the number of pigs, socio-demographics, JEV vaccination coverage and the number of hospitals were also collected. Spatio-temporal multivariable mixed-effects negative binomial Bayesian models with an outcome of the number of cases of AES, a combination of the covariates and harmonic terms to determine the magnitude of seasonality were developed. Results The national monthly incidence of AES declined by 63.3% over the study period. However, incidence increased in some provinces, particularly in the Northwest region. In northern Vietnam, the incidence peaked in the summer months in contrast to the southern provinces where incidence remained relatively constant throughout the year. The incidence of meningitis, ILI and S. suis infection; temperature, relative humidity with no lag, NDVI at a lag of one month, and the number of pigs per 100,000 population were positively associated with the number of cases of AES in all models in which these covariates were included. Conclusions The positive correlation of AES with temperature and humidity suggest that a number of cases may be due to vector-borne diseases, suggesting a need to focus on vaccination campaigns. However, further surveillance and research are recommended to investigate other possible aetiologies such as S. suis or Orientia tsutsugamushi.
Læs mere Tjek på PubMedBMC Infectious Diseases, 15.06.2023
Tilføjet 15.06.2023
Abstract Background Klebsiella pneumoniae can infect a variety of sites, with the risk of infection being higher in the immunocompromised state such as diabetes mellitus. A distinct invasive syndrome has been detected mostly in Southeast Asia in the past two decades. A common destructive complication is pyogenic liver abscess that can be complicated by metastatic endophthalmitis as well as the involvement of the central nervous system, causing purulent meningitis or brain abscess. Case presentation We report a rare case of an invasive liver abscess caused by K. pneumoniae, with metastatic infections of meninges. A 68-year-old man with type 2 diabetes mellitus presented to our emergency department as sepsis. Sudden disturbed consciousness was noticed with presentation of acute hemiplegia and gaze preference mimicking a cerebrovascular accident. Conclusions The above case adds to the scarce literature on K. pneumoniae invasive syndrome with liver abscess and purulent meningitis. K. pneumoniae is a rare cause of meningitis and should raise suspicions about the disease in febrile individuals. In particular, Asian patients with diabetes presenting with sepsis and hemiplegia prompt a more thorough evaluation with aggressive treatment.
Læs mere Tjek på PubMedLiaoyang Xu, Huijuan Wu, Hang Zhou, Xinyu Zhou, Yong Sun
International Journal of Infectious Diseases, 14.06.2023
Tilføjet 14.06.2023
A man near 60-year-old suddenly became unconscious; his right side was twitching, and he was staring in one direction, but this was relieved within ∼5 minutes with a tongue bite. Glasgow coma scale was 10. The patient had conjunctival congestion in both eyes for >20 days before admission. After the seizure, the patient had a headache, dizziness, apparent rotation, cough, nausea, and vomiting; he could not walk stably and easily toppled to the right when standing; and he had a low fever in the afternoon with body temperature fluctuating below 38°C but no obvious weight loss.
Læs mere Tjek på PubMedBMC Infectious Diseases, 14.06.2023
Tilføjet 14.06.2023
Abstract Background Acute encephalitis syndrome (AES) differs in its spatio-temporal distribution in Vietnam with the highest incidence seen during the summer months in the northern provinces. AES has multiple aetiologies, and the cause remains unknown in many cases. While vector-borne disease such as Japanese encephalitis and dengue virus and non-vector-borne diseases such as influenza and enterovirus show evidence of seasonality, associations with climate variables and the spatio-temporal distribution in Vietnam differs between these. The aim of this study was therefore to understand the spatio-temporal distribution of, and risk factors for AES in Vietnam to help hypothesise the aetiology. Methods The number of monthly cases per province for AES, meningitis and diseases including dengue fever; influenza-like-illness (ILI); hand, foot, and mouth disease (HFMD); and Streptococcus suis were obtained from the General Department for Preventive Medicine (GDPM) from 1998–2016. Covariates including climate, normalized difference vegetation index (NDVI), elevation, the number of pigs, socio-demographics, JEV vaccination coverage and the number of hospitals were also collected. Spatio-temporal multivariable mixed-effects negative binomial Bayesian models with an outcome of the number of cases of AES, a combination of the covariates and harmonic terms to determine the magnitude of seasonality were developed. Results The national monthly incidence of AES declined by 63.3% over the study period. However, incidence increased in some provinces, particularly in the Northwest region. In northern Vietnam, the incidence peaked in the summer months in contrast to the southern provinces where incidence remained relatively constant throughout the year. The incidence of meningitis, ILI and S. suis infection; temperature, relative humidity with no lag, NDVI at a lag of one month, and the number of pigs per 100,000 population were positively associated with the number of cases of AES in all models in which these covariates were included. Conclusions The positive correlation of AES with temperature and humidity suggest that a number of cases may be due to vector-borne diseases, suggesting a need to focus on vaccination campaigns. However, further surveillance and research are recommended to investigate other possible aetiologies such as S. suis or Orientia tsutsugamushi.
Læs mere Tjek på PubMedBMC Infectious Diseases, 13.06.2023
Tilføjet 13.06.2023
Abstract Background Klebsiella pneumoniae can infect a variety of sites, with the risk of infection being higher in the immunocompromised state such as diabetes mellitus. A distinct invasive syndrome has been detected mostly in Southeast Asia in the past two decades. A common destructive complication is pyogenic liver abscess that can be complicated by metastatic endophthalmitis as well as the involvement of the central nervous system, causing purulent meningitis or brain abscess. Case presentation We report a rare case of an invasive liver abscess caused by K. pneumoniae, with metastatic infections of meninges. A 68-year-old man with type 2 diabetes mellitus presented to our emergency department as sepsis. Sudden disturbed consciousness was noticed with presentation of acute hemiplegia and gaze preference mimicking a cerebrovascular accident. Conclusions The above case adds to the scarce literature on K. pneumoniae invasive syndrome with liver abscess and purulent meningitis. K. pneumoniae is a rare cause of meningitis and should raise suspicions about the disease in febrile individuals. In particular, Asian patients with diabetes presenting with sepsis and hemiplegia prompt a more thorough evaluation with aggressive treatment.
Læs mere Tjek på PubMedBMC Infectious Diseases, 6.06.2023
Tilføjet 6.06.2023
Abstract Background Community-acquired bacterial meningitis is a rare but severe central nervous system infection that may be associated with cerebrovascular complications (CVC). Our objective is to assess the prevalence of CVC in patients with community-acquired bacterial meningitis and to determine the first-48 h factors associated with CVC. Methods We analyzed data from the prospective multicenter cohort study (COMBAT) including, between February 2013 and July 2015, adults with community-acquired bacterial meningitis. CVC were defined by the presence of clinical or radiological signs (on cerebral CT or MRI) of focal clinical symptom. Factors associated with CVC were identified by multivariate logistic regression. Results CVC occurred in 128 (25.3%) of the 506 patients in the COMBAT cohort (78 (29.4%) of the 265 pneumococcal meningitis, 17 (15.3%) of the 111 meningococcal meningitis, and 29 (24.8%) of the 117 meningitis caused by other bacteria). The proportion of patients receiving adjunctive dexamethasone was not statistically different between patients with and without CVC (p = 0.84). In the multivariate analysis, advanced age (OR = 1.01 [1.00-1.03], p = 0.03), altered mental status at admission (OR = 2.23 [1.21–4.10], p = 0.01) and seizure during the first 48 h from admission (OR = 1.90 [1.01–3.52], p = 0.04) were independently associated with CVC. Conclusions CVC were frequent during community-acquired bacterial meningitis and associated with advanced age, altered mental status and seizures occurring within 48 h from admission but not with adjunctive corticosteroids.
Læs mere Tjek på PubMedMara Gutiérrez-Sánchez, María Maricela Carrasco-Yépez, José Correa-Basurto, Gema Lizbeth Ramírez-Salinas, Saúl Rojas-HernándezaLaboratorio de Inmunobiología Molecular y Celular, Sección de Estudios de Posgrado e Investigación, Escuela Superior de Medicina, Instituto Politécnico Nacional, Mexico City, MexicobLaboratorio de Microbiología, Grupo CyMA, Unidad de Investigación Interdisciplinaria en Ciencias de la Salud y la Educación, Universidad Nacional Autónoma de México, UNAM FES Iztacala, Tlalnepantla, MexicocLaboratorio de Diseño y Desarrollo de Nuevos Fármacos e Innovación Biotécnológica (Laboratory for the Design and Development of New Drugs and Biotechnological Innovation), Escuela Superior de Medicina, Instituto Politécnico Nacional, Plan de San Luis y Díaz Mirón, Mexico City, Mexico, Guy H. Palmer
Infection and Immunity, 5.06.2023
Tilføjet 5.06.2023
BMC Infectious Diseases, 31.05.2023
Tilføjet 31.05.2023
Abstract Aim Until now, the performance of interferon-γ release assay (IGRA) and Mantoux tests remains unclear in infant tuberculous meningitis (TBM). Therefore, a systematic review is performed to evaluate the sensitivity of IGRA and Mantoux tests for the diagnosis of infant TBM in low and intermediate tuberculosis (TB) burden countries, while following PRISMA. Methods Several databases, including PubMed, EBSCO, Embase, Scopus, Web of Science, ClinicalTrials.gov, and Cochrane Central Register of Controlled Trials, were searched. Articles describing the results of IGRA or Mantoux tests among infant TBM were included for analysis. Data, such as age, sex, Mantoux test or IGRA, and cerebrospinal fluid (CSF) microbiological examinations (such as acid-fast bacilli (AFB) smear, TB PCR, and TB culture), were extracted from each study. Results A total of 31 articles were enrolled for further analysis, including 48 cases. The mean age was 9.4 ± 5.8 months and boys accounted for 57.1% of infants (24/42). Mantoux test was positive in 57.4% (27/47) of tested infants and IGRA was positive in 77.8% (7/9) of infants. In addition, among the infants with confirmed TB, 18 (52.9%, 18/34) of them have positive Mantoux responses and 7 (20.0%, 7/35) have positive IGRA results. Conclusions In low or intermediate TB burden countries, the Mantoux test has a poor performance for diagnosing TBM among infants, and IGRAs appear to have a moderate sensitivity for the diagnosis of infant TBM.
Læs mere Tjek på PubMedClinical Infectious Diseases, 27.05.2023
Tilføjet 27.05.2023
AbstractIntroductionPatients without HIV infection are increasingly recognised to be at risk for cryptococcosis. Knowledge of characteristics of cryptococcosis in these patients remains incomplete.MethodsWe conducted a retrospective study of cryptococcosis in 46 Australian and New Zealand hospitals to compare its frequency in patients with and without HIV, and describe its characteristics in patients without HIV. Patients with cryptococcosis between January 2015 and December 2019 were included.ResultsOf 475 patients with cryptococcosis, 90% were HIV-negative (426/475) with the marked predominance of HIV-negative cases evident in both Cryptococcus neoformans (88.7%) and C. gattii cases (94.3%). Most patients without HIV (60.8%) had a known immunocompromising condition: cancer (n=91), organ transplantation (n=81), other immunocompromising condition (n=97). Cryptococcosis presented as incidental imaging findings in 16.4% of patients (70/426). The serum cryptococcal antigen test was positive in 85.1 % of tested patients (319/375); high titres independently predicted risk of central nervous system involvement. Lumbar puncture was performed in 167 patients to screen for asymptomatic meningitis, with a positivity rate of 13.2% where meningitis could have been predicted by a high serum cryptococcal antigen titre and/or fungaemia in 95% of evaluable cases. One-year all-cause mortality was 20.9% in patients without HIV and 21.7% in patients with HIV (p=0.89).ConclusionThe present study revealed 90% of cryptococcosis cases occurred in patients without HIV (89% and 94% for C. neoformans and C. gattii cases, respectively). Emerging patient risk groups were evident. A high level of awareness is warranted to diagnose cryptococcosis in patients without HIV.
Læs mere Tjek på PubMedJournal of the American Medical Association, 27.05.2023
Tilføjet 27.05.2023
This study reports an epidemiological assessment of laboratory-confirmed group A streptococcal meningitis cases in the Netherlands using more than 40 years of national bacteriological surveillance data.
Læs mere Tjek på PubMedBMC Infectious Diseases, 27.05.2023
Tilføjet 27.05.2023
Abstract Background Cryptococcal meningitis (CM) is the most common fungal infection of the central nervous system that can cause significant morbidity and mortality. Although several prognostic factors have been identified, their clinical efficacy and use in combination to predict outcomes in immunocompetent patients with CM are not clear. Therefore, we aimed to determine the utility of those prognostic factors alone or in combination in predicting outcomes of immunocompetent patients with CM. Methods The demographic and clinical data of patients with CM were collected and analyzed. The clinical outcome was graded by the Glasgow outcome scale (GOS) at discharge, and patients were divided into good (score of 5) and unfavorable (score of 1–4) outcome groups. Prognostic model was created and receiver-operating characteristic curve analyses were conducted. Results A total of 156 patients were included in our study. Patients with higher age at onset (p = 0.021), ventriculoperitoneal shunt placement (p = 0.010), Glasgow Coma Scale (GCS) score of less than 15(p< 0.001), lower CSF glucose concentration (p = 0.037) and immunocompromised condition (p = 0.002) tended to have worse outcomes. Logistic regression analysis was used to create a combined score which had a higher AUC (0.815) than those factors used alone for predicting outcome. Conclusions Our study shows that a prediction model based on clinical characteristics had satisfactory accuracy in prognostic prediction. Early recognition of CM patients at risk of poor prognosis using this model would be helpful in providing timely management and therapy to improve outcomes and to identify individuals who warrant early follow-up and intervention.
Læs mere Tjek på PubMedBMC Infectious Diseases, 26.05.2023
Tilføjet 26.05.2023
Abstract Background Cryptococcal meningitis (CM) is the most common fungal infection of the central nervous system that can cause significant morbidity and mortality. Although several prognostic factors have been identified, their clinical efficacy and use in combination to predict outcomes in immunocompetent patients with CM are not clear. Therefore, we aimed to determine the utility of those prognostic factors alone or in combination in predicting outcomes of immunocompetent patients with CM. Methods The demographic and clinical data of patients with CM were collected and analyzed. The clinical outcome was graded by the Glasgow outcome scale (GOS) at discharge, and patients were divided into good (score of 5) and unfavorable (score of 1–4) outcome groups. Prognostic model was created and receiver-operating characteristic curve analyses were conducted. Results A total of 156 patients were included in our study. Patients with higher age at onset (p = 0.021), ventriculoperitoneal shunt placement (p = 0.010), Glasgow Coma Scale (GCS) score of less than 15(p< 0.001), lower CSF glucose concentration (p = 0.037) and immunocompromised condition (p = 0.002) tended to have worse outcomes. Logistic regression analysis was used to create a combined score which had a higher AUC (0.815) than those factors used alone for predicting outcome. Conclusions Our study shows that a prediction model based on clinical characteristics had satisfactory accuracy in prognostic prediction. Early recognition of CM patients at risk of poor prognosis using this model would be helpful in providing timely management and therapy to improve outcomes and to identify individuals who warrant early follow-up and intervention.
Læs mere Tjek på PubMedInfection, 24.05.2023
Tilføjet 24.05.2023
Abstract Purpose Ureaplasma species are associated with urogenital infections, infertility and adverse pregnancy outcomes as well as neonatal infections. Involvement of the central nervous system in adults is extremely rare. We report an unusual case of a brain abscess secondary to otitis media with Ureaplasma parvum in a patient with granulomatosis with polyangiitis (GPA). Methods Imaging and laboratory findings, treatment decisions, and outcome of this case are explicated. Results A young adult with GPA presented with progredient earache after ambulant diagnosis of otitis media. Despite different courses of broad-spectrum antibiotic therapy, she developed meningoencephalitis due to mastoiditis following temporal abscess formation. Mastoidectomy and neurosurgical abscess removal were performed. Standard cultures of cerebrospinal fluid, blood and intracranial abscess material, as well as polymerase chain reaction (PCR) for common bacterial and viral meningitis pathogens remained negative. Only eubacterial PCR of intracranial abscess material returned positive for Ureaplasma parvum. The patient finally improved under antibiotic therapy with moxifloxacin and doxycycline. Conclusion Ureaplasma species are rare causative pathogens in immunocompromised patients. They should be considered in patients with humoral immunodeficiencies with culture-negative infections failing standard therapy. Eubacterial PCR should be performed in early states of infection in these patients for immediate diagnosis and initiation of appropriate treatment to prevent adverse outcomes.
Læs mere Tjek på PubMedBMC Infectious Diseases, 21.05.2023
Tilføjet 21.05.2023
Abstract Background Bacterial meningitis caused by non-typhoid Salmonella can be a fatal condition which is more common in low and middle-income countries. Case presentation We report the case of a Salmonella meningitis in a Belgian six-month old male infant. The first clinical examination was reassuring, but after a few hours, his general state deteriorated. A blood test and a lumbar puncture were therefore performed. The cerebrospinal fluid analysis was compatible with a bacterial meningitis which was later identified by the NRC (National Reference Center) as Salmonella enterica serovar Durban. Conclusions In this paper, we present the clinical presentation, genomic typing, and probable sources of infection for an unusually rare serovar of Salmonella. Through an extended genomic analysis, we established its relationship to historical cases with links to Guinea.
Læs mere Tjek på PubMedBMC Infectious Diseases, 17.05.2023
Tilføjet 17.05.2023
Abstract Campylobacter spp. is a gram-negative bacillus that causes infectious enteritis and consists of several species, including Campylobacter jejuni, Campylobacter coli, and Campylobacter fetus. Although C. jejuni and C. coli cause infectious enteritis primarily in immunocompetent hosts, C. fetus causes extraintestinal infections such as septicemia, meningitis, and perinatal infections in immunocompromised hosts, as well as myopericarditis in rare cases. Only a few cases of infectious myo(peri)carditis associated with C. coli in immunocompetent hosts have been reported. These studies concentrated on antecedent C. coli enterocolitis and never demonstrated a positive culture in the pericardial fluid. A 72-year-old Japanese man presented with a 2-week fever, cough, and vomiting lasting. He was on hemodialysis for polycystic kidney disease, as well as medication for diabetes and hypertension. A chest computed tomography (CT) scan and a transthoracic echocardiogram revealed bilateral pleural fluid and large pericardial fluid at the time of admission. C. coli was identified from blood culture samples and blood-tinged pericardial fluid. He was successfully treated with antibacterial chemotherapy as well as pericardial fluid drainage and was discharged from the hospital with no complications. In this case, the presence of C. coli in the pericardial fluid confirmed the diagnosis of C. coli pericarditis. C. coli may cause septic pericarditis in immunocompromised hosts, despite typically causing only enteritis.
Læs mere Tjek på PubMedBMC Infectious Diseases, 11.05.2023
Tilføjet 11.05.2023
Abstract Campylobacter spp. is a gram-negative bacillus that causes infectious enteritis and consists of several species, including Campylobacter jejuni, Campylobacter coli, and Campylobacter fetus. Although C. jejuni and C. coli cause infectious enteritis primarily in immunocompetent hosts, C. fetus causes extraintestinal infections such as septicemia, meningitis, and perinatal infections in immunocompromised hosts, as well as myopericarditis in rare cases. Only a few cases of infectious myo(peri)carditis associated with C. coli in immunocompetent hosts have been reported. These studies concentrated on antecedent C. coli enterocolitis and never demonstrated a positive culture in the pericardial fluid. A 72-year-old Japanese man presented with a 2-week fever, cough, and vomiting lasting. He was on hemodialysis for polycystic kidney disease, as well as medication for diabetes and hypertension. A chest computed tomography (CT) scan and a transthoracic echocardiogram revealed bilateral pleural fluid and large pericardial fluid at the time of admission. C. coli was identified from blood culture samples and blood-tinged pericardial fluid. He was successfully treated with antibacterial chemotherapy as well as pericardial fluid drainage and was discharged from the hospital with no complications. In this case, the presence of C. coli in the pericardial fluid confirmed the diagnosis of C. coli pericarditis. C. coli may cause septic pericarditis in immunocompromised hosts, despite typically causing only enteritis.
Læs mere Tjek på PubMedBMC Infectious Diseases, 3.05.2023
Tilføjet 3.05.2023
Abstract Background Certain bacterial infectious diseases are categorized as notifiable infectious diseases in China. Understanding the time-varying epidemiology of bacterial infections diseases can provide scientific evidence to inform prevention and control measures. Methods Yearly incidence data for all 17 major notifiable bacterial infectious diseases (BIDs) at the province level were obtained from the National Notifiable Infectious Disease Reporting Information System in China between 2004 and 2019. Of them 16 BIDs are divided into four categories, respiratory transmitted diseases (RTDs, 6 diseases), direct contact/fecal-oral transmitted diseases (DCFTDs, 3 diseases), blood-borne/sexually transmitted diseases (BSTDs, 2 diseases), and zoonotic and vector-borne diseases (ZVDs, 5 diseases), and neonatal tetanus is excluded in the analysis. We characterized the demographic, temporal, and geographical features of the BIDs and examined their changing trends using a joinpoint regression analysis. Results During 2004‒2019, 28 779 thousand cases of BIDs were reported, with an annualized incidence rate of 134.00 per 100 000. RTDs were the most commonly reported BIDs, accounting for 57.02% of the cases (16 410 639/28 779 000). Average annual percent changes (AAPC) in incidence were − 1.98% for RTDs, − 11.66% for DCFTDs, 4.74% for BSTDs, and 4.46% for ZVDs. Females had a higher incidence of syphilis than males, and other BIDs were more commonly reported in males. Among 0-5-year-olds, the diseases with the largest increases in incidence were pertussis (15.17% AAPC) and scarlet fever (12.05%). Children and students had the highest incidence rates of scarlet fever, pertussis, meningococcal meningitis, and bacillary dysentery. Northwest China had the highest incidence of RTDs, while South and East China had the highest incidences of BSTDs. Laboratory confirmation of BIDs increased from 43.80 to 64.04% during the study period. Conclusions RTDs and DCFTDs decreased from 2004 to 2019 in China, while BSTDs and ZVDs increased during the same period. Great attention should be paid to BSTDs and ZVDs, active surveillance should be strengthened, and timely control measures should be adopted to reduce the incidence.
Læs mere Tjek på PubMedGundamraj, Vaishnavi; Hasbun, Rodrigo
Current Opinion in Infectious Diseases, 1.05.2023
Tilføjet 1.05.2023
Purpose of review The most common infectious etiologies of meningitis and encephalitis are viruses. In this review, we will discuss current epidemiology, prevention, diagnosis, and treatment of the most common causes of viral meningitis and encephalitis worldwide. Recent findings Viral meningitis and encephalitis are increasingly diagnosed as molecular diagnostic techniques and serologies have become more readily available worldwide but recent progress in novel antiviral therapies remains limited. Emerging and re-emerging viruses that have caused endemic or worldwide outbreaks or epidemics are arboviruses (e.g., West Nile virus, Japanese encephalitis, Tick borne encephalitis, Dengue, Zika, Toscana), enteroviruses (e.g., Enterovirus 71, Enterovirus D68), Parechoviruses, respiratory viruses [e.g., severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), influenza, metapneumoviruses, measles, mumps], and herpes viruses [e.g., herpes simplex virus (HSV) type 1 (HSV-1), HSV-2, human herpes (HV) 6, varicella zoster virus (VZV)]. Future efforts should concentrate in increasing availability for those viruses with effective vaccination [e.g., Japanese encephalitis, Tick borne encephalitis, varicella zoster viruses, SARS-CoV-2, influenza], prompt initiation of those with encephalitis with treatable viruses (e.g., HSV-1, VZV), increasing the diagnostic yield by using novel techniques such as metagenomic sequencing and avoiding unnecessary antibiotics in those with viral meningitis or encephalitis. Summary We review the current epidemiology, clinical presentation, diagnosis, and treatment of the common causative agents of viral meningitis and encephalitis worldwide.
Læs mere Tjek på PubMedSoares, Cristiane N.; da Silva, Marcus Tulius T.; Lima, Marco Antonio
Current Opinion in Infectious Diseases, 1.05.2023
Tilføjet 1.05.2023
Purpose of review Brucellosis is one of the most common zoonosis worldwide, affecting 500 000 people, annually. Neurobrucellosis incidence is approximately 4%, and it is almost always heterogeneous. As there are no typical clinical features, its diagnosis is frequently misdiagnosing by other infections. Recent findings Neurobrucellosis picture includes meningitis, meningoencephalitis, encephalitis, cranial neuropathies, intracranial hypertension, sinus thrombosis, hemorrhages radiculitis, peripheral neuropathy, myelitis, and psychiatric manifestations. The diagnosis should be based on symptoms and signs suggestive of neurobrucellosis, not explained by other neurological disease, cerebrospinal fluid analysis, a positive Brucella serology or culture, and a response to specific antibiotics, with a significant improvement of cerebrospinal fluid parameters. Summary Neurobrucellosis can be insidious, and despite its global distribution, it is still unrecognized and frequently goes unreported. The understanding of the current epidemiology is necessary for eradication of the disease in humans, as well as the disease control in animals and prevention based on occupational hygiene and food hygiene.
Læs mere Tjek på PubMedJournal of the American Medical Association, 25.04.2023
Tilføjet 25.04.2023
To the Editor We read with interest the recent Review on bacterial meningitis and agree that prompt diagnosis and early adequate antibiotic therapy are crucial for the prognosis. Although polymerase chain reaction (PCR) tests are extremely useful both for differentiating between bacterial and aseptic meningitis and for bacterial identification, we believe that the role of immunochromatographic tests (ICTs) should not be overlooked.
Læs mere Tjek på PubMedJournal of the American Medical Association, 25.04.2023
Tilføjet 25.04.2023
To the Editor The recent Review on bacterial meningitis is both timely and relevant, given that a considerable amount of time has passed since the last consensus statement or guidelines on bacterial meningitis. Despite recent improvements in management of bacterial meningitis, there is still a long way to go to attain the goals set by the World Health Organization, which provided an ambitious plan to address meningitis and its consequences by 2030.
Læs mere Tjek på PubMedJournal of the American Medical Association, 25.04.2023
Tilføjet 25.04.2023
In Reply In response to the Review article on bacterial meningitis, Dr Ait-Ali and colleagues describe the usefulness of the S pneumoniae ICT that can be performed on CSF of patients with suspected pneumococcal meningitis. I agree that this is a very sensitive and specific test for pneumococcal meningitis, and is particularly useful in hospitals without access to multiplex PCR assays. The S pneumoniae immunochromatographic test is also less expensive and faster than PCR assays and is an invaluable tool, especially in resource-limited countries where it has been evaluated.
Læs mere Tjek på PubMedYih-Ling Tzeng, Soma Sannigrahi, Zachary Berman, Emily Bourne, Jennifer L. Edwards, Jose A. Bazan, Abigail Norris Turner, James W. B. Moir, David S. StephensaDivision of Infectious Diseases, Department of Medicine, Emory University School of Medicine, Atlanta, Georgia, USAbDepartment of Pediatrics, The Research Institute at Nationwide Children’s Hospital and The Ohio State University, Columbus, Ohio, USAcDivision of Infectious Diseases, Department of Internal Medicine, The Ohio State University College of Medicine, Columbus, Ohio, USAdSexual Health Clinic, Columbus Public Health, Columbus, Ohio, USAeDepartment of Biology, University of York, Heslington, York, United KingdomfDepartment of Microbiology and Immunology, Emory University School of Medicine, Atlanta, Georgia, USA, Kimberly A. Kline
Infection and Immunity, 24.04.2023
Tilføjet 24.04.2023