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Clinical & Experimental Immunology, 26.04.2024
Tilføjet 26.04.2024
Abstract Cerebral aneurysm (CA) represent a significant clinical challenge, characterized by pathological dilation of cerebral arteries. Recent evidence underscores the crucial involvement of immune cells in CA pathogenesis. This study aims to explore the complex interplay between immune cells and CA formation. We analyzed single-cell RNA sequencing data from the GSE193533 dataset, focusing on unruptured CA and their controls. Comprehensive cell-type identification and pseudotime trajectory analyses were conducted to delineate the dynamic shifts in immune cell populations. Additionally, a two-sample Mendelian Randomization (MR) approach was employed to investigate the causal influence of various immunophenotypes on CA susceptibility and the reciprocal effect of CA formation on immune phenotypes. Single-cell transcriptomic analysis revealed a progressive loss of vascular smooth muscle cells (VSMCs) and an increase in monocytes/macrophages (Mo/MΦ) and other immune cells, signifying a shift from a structural to an inflammatory milieu in CA evolution. MR analysis identified some vital immunophenotypes, such as CD64 on CD14+ CD16+ monocytes (OR: 1.236, 95% CI: 1.064 to 1.435, p=0.006), as potential risk factors for CA development, while others, like CD28- CD8br %CD8br (OR: 0.883, 95% CI: 0.789 to 0.988, p=0.030), appeared protective. Reverse MR analysis demonstrated that CA formation could modulate specific immunophenotypic expressions, highlighting a complex bidirectional interaction between CA pathology and immune response. This study underscores the pivotal role of immune cells in this process through the integration of single-cell transcriptomics with MR analysis, offering a comprehensive perspective on CA pathogenesis, potentially guiding future therapeutic strategies targeting specific immune pathways.
Læs mere Tjek på PubMedEvangelos Giampazolias, Mariana Pereira da Costa, Khiem C. Lam, Kok Haw Jonathan Lim, Ana Cardoso, Cécile Piot, Probir Chakravarty, Sonja Blasche, Swara Patel, Adi Biram, Tomas Castro-Dopico, Michael D. Buck, Richard R. Rodrigues, Gry Juul Poulsen, Susana A. Palma-Duran, Neil C. Rogers, Maria A. Koufaki, Carlos M. Minutti, Pengbo Wang, Alexander Vdovin, Bruno Frederico, Eleanor Childs, Sonia Lee, Ben Simpson, Andrea Iseppon, Sara Omenetti, Gavin Kelly, Robert Goldstone, Emma Nye, Alejandro Suárez-Bonnet, Simon L. Priestnall, James I. MacRae, Santiago Zelenay, Kiran Raosaheb Patil, Kevin Litchfield, James C. Lee, Tine Jess, Romina S. Goldszmid, Caetano Reis e Sousa
Science, 25.04.2024
Tilføjet 25.04.2024
Deus S. Ishengoma, Roly Gosling, Rosario Martinez-Vega, Khalid B. Beshir, Jeffrey A. Bailey, John Chimumbwa, Colin Sutherland, Melissa D. Conrad, Fitsum G. Tadesse, Jonathan J. Juliano, Moses R. Kamya, Wilfred F. Mbacham, Didier Ménard, Philip J. Rosenthal, Jaishree Raman, Allison Tatarsky, Sofonias K. Tessema, David A. Fidock, Abdoulaye A. Djimde
Nature, 25.04.2024
Tilføjet 25.04.2024
Marília Antônia Oliveira da Trindade, Álvaro Luan Santana Fonseca, Isabelle Helena Lima Dias, Sergei Rodrigo Magalhães de Sousa, Martin Johannes Enk, Karla Valéria Batista Lima, Ricardo Jose de Paula Souza e Guimarães
Tropical Medicine & International Health, 25.04.2024
Tilføjet 25.04.2024
Clinical Infectious Diseases, 25.04.2024
Tilføjet 25.04.2024
Abstract We report identification of 5 patients with infections caused by NDM-5-producing E. coli harboring PBP3 mutations that showed reduced susceptibility to aztreonam-avibactam and cefiderocol. Durlobactam, a novel diazabicyclooctane β-lactamase inhibitor, demonstrated minimum inhibitory concentrations ranging from 0.5 to 2 µg/mL supporting future investigations into a potential role in clinical management.
Læs mere Tjek på PubMedInfectious Disease Modelling, 25.04.2024
Tilføjet 25.04.2024
Publication date: September 2024 Source: Infectious Disease Modelling, Volume 9, Issue 3 Author(s): Carlos Andreu-Vilarroig, Rafael J. Villanueva, Gilberto González-Parra
Læs mere Tjek på PubMedNew England Journal of Medicine, 25.04.2024
Tilføjet 25.04.2024
New England Journal of Medicine, Volume 390, Issue 16, Page 1532-1533, April 25, 2024.
Læs mere Tjek på PubMedNew England Journal of Medicine, 25.04.2024
Tilføjet 25.04.2024
New England Journal of Medicine, Volume 390, Issue 16, Page 1533-1535, April 25, 2024.
Læs mere Tjek på PubMedAlan Y. Hsu, Chun‐Ju Lin, Ning‐Yi Hsia, Yu‐Hsun Wang, Jing‐Xing Li, Huan‐Sheng Chen, James Cheng‐Chung Wei, Yi‐Yu Tsai
Journal of Medical Virology, 25.04.2024
Tilføjet 25.04.2024
Guilherme S. Lira, Victor A. Ota, Mariana Q. S. Melo, Anna C. P. Castiñeiras, Isabela C. Leitão, Bianca O. Silva, Diana Mariani, Cássia C. A. Gonçalves, Liane J. Ribeiro, Marcia Halpern, Thalita F. Abreu, Fabiana A. Carneiro, Helena T. Scheid, Leonardo A. V. Souza, Débora G. M. Rodrigues, Nádia V. G. Cruz, Andrea Cony, Silvia Carvalho, Loyze P. O. de Lima, Vincent L. Viala, Lucio A. Caldas, Wanderley de Souza, Luiza M. Higa, Carolina M. Voloch, Orlando C. Ferreira Jr., Clarissa R. Damaso, Rafael M. Galliez, Débora S. Faffe, Amilcar Tanuri, Terezinha M. P. P. Castiñeiras
Journal of Medical Virology, 25.04.2024
Tilføjet 25.04.2024
Charlotte Hewel, Hanno Schmidt, Stefan Runkel, Wolfgang Kohnen, Susann Schweiger‐Seemann, André Michel, Sven‐Ernö Bikar, Bettina Lieb, Bodo Plachter, Thomas Hankeln, Matthias Linke, Susanne Gerber
Journal of Medical Virology, 25.04.2024
Tilføjet 25.04.2024
Wenjie Wang, Zijian Wang, Zumin Chen, Manman Liang, Aiping Zhang, Haoyu Sheng, Mingyue Ni, Jianghua Yang
Journal of Medical Virology, 25.04.2024
Tilføjet 25.04.2024
Seifu, B. L., Tesema, G. A., Tebeje, T., Legesse, B. T., Yehuala, T. Z., Wuneh, A. G., Tadese, Z. B., Mare, K. U.
BMJ Open, 25.04.2024
Tilføjet 25.04.2024
BackgroundLow haemoglobin level in children is linked with short-term and long-term consequences including developmental delay. Globally, over half of the children under the age of five years had low haemoglobin concentration. However, there is limited research on the prevalence and determinants of normal haemoglobin concentration among under-five children in sub-Saharan Africa. ObjectiveTo assess determinants of normal haemoglobin concentration among under-five children in SSA. DesignCross-sectional study design using a positive deviance approach Setting33 SSA countries. Participants129 408 children aged 6–59 months Primary and secondary outcome measuresA multilevel Poisson regression model with robust variance was fitted to identify determinants of normal haemoglobin concentration. An adjusted prevalence ratio with a 95% CI was reported to declare the statistical significance. ResultThe pooled prevalence of normal haemoglobin concentration among under-five children in SSA was 34.9% (95% CI: 34.6% to 35.1%). High maternal education, middle and rich household wealth, female child, frequent antenatal care visits, non-anaemic mothers, taking anthelmintic drugs and normal nutritional status were associated with increased odds of normal haemoglobin concentration. On the other hand, higher birth order, having fever and diarrhoea, rural residence were associated with lower odds of normal haemoglobin levels. ConclusionAccording to our finding, only four out of 10 under-five children in SSA had a normal haemoglobin level. This finding proved that anaemia among children in SSA remains a serious public health concern. Therefore, improving maternal education, provision of drugs for an intestinal parasite and early detection and treatment of maternal anaemia, febrile illness and diarrhoeal disease is important.
Læs mere Tjek på PubMedXu CaoLan HuangMin TangYue LiangXinpeng LiuHuijin HouShufang LiangDepartment of Biotherapy, Cancer Center and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, China
Virulence, 25.04.2024
Tilføjet 25.04.2024
Zheng LvXuan ZhangKelei ZhaoLianming DuXinrong WangYiwen ChuTing Huanga Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province, School of pharmacy, Chengdu University, Chengdu, Chinab Institute for Advanced Study, Chengdu University, Chengdu, Chinac Antiinfective Agent Creation Engineering Research Centre of Sichuan Province, Sichuan Industrial Institute of Antibiotics, School of pharmacy, Chengdu University, Chengdu, China
Virulence, 25.04.2024
Tilføjet 25.04.2024
Elise Biquand, Sandra Khau, Nicolas Papon, Benoit Briard
Trends in Microbiology, 25.04.2024
Tilføjet 25.04.2024
Invasive fungal infections represent millions of deaths per year, but their pathophysiology remains insufficiently understood. Host–fungi interplay has been recently shown to include extracellular vesicles derived from fungi and host infected cells. In this forum article we discuss their emerging role in modulating the host immune response with particular emphasis on their regulatory involvement during Candida albicans infection.
Læs mere Tjek på PubMedPhrutsamon Wongnak, William H K Schilling, Podjanee Jittamala, Simon Boyd, Viravarn Luvira, Tanaya Siripoon, Thundon Ngamprasertchai, Elizabeth M Batty, Shivani Singh, Jindarat Kouhathong, Watcharee Pagornrat, Patpannee Khanthagan, Borimas Hanboonkunupakarn, Kittiyod Poovorawan, Mayfong Mayxay, Kesinee Chotivanich, Mallika Imwong, Sasithon Pukrittayakamee, Elizabeth A Ashley, Arjen M Dondorp, Nicholas P J Day, Mauro M Teixeira, Watcharapong Piyaphanee, Weerapong Phumratanaprapin, Nicholas J White, James A Watson, PLATCOV Collaborative Group
Lancet Infectious Diseases, 25.04.2024
Tilføjet 25.04.2024
SARS-CoV-2 viral clearance kinetics in symptomatic, vaccinated individuals accelerated substantially over 2 years of the pandemic, necessitating a change to how new SARS-CoV-2 antivirals are compared (ie, shortening the period of pharmacodynamic assessment). As of writing (October, 2023), antiviral efficacy in COVID-19 can be efficiently assessed in vivo using serial qPCRs from duplicate oropharyngeal swab eluates taken daily for 5 days after drug administration.
Læs mere Tjek på PubMedInfection, 25.04.2024
Tilføjet 25.04.2024
Abstract Background This retrospective study focused on analyzing community-acquired respiratory virus (CARV) infections, in particular human parainfluenza virus (hPIV) after allogeneic stem cell transplant (allo-SCT) in adults recipients. It aimed to assess the impact of ribavirin treatment, clinical characteristics, and risk factors associated with lower respiratory tract disease (LRTD) progression and all-cause mortality. Patients and methods The study included 230 allo-SCT recipients diagnosed with hPIV between December 2013 and June 2023. Risk factors for the development of LRTD, disease severity, and mortality were analyzed. Ribavirin treatment was administered at physician discretion in 61 out of 230 cases (27%). Results Risk factors for LRTD progression in multivariate analysis were corticosteroids > 30 mg/day (Odds ratio (OR) 3.5, 95% Confidence Interval (C.I.) 1.3–9.4, p = 0.013), fever at the time of hPIV detection (OR 3.89, 95% C.I. 1.84–8.2, p
Læs mere Tjek på PubMedJournal of Infectious Diseases, 25.04.2024
Tilføjet 25.04.2024
Abstract In Norway, single cohort vaccination with quadrivalent HPV (qHPV) vaccine targeting 12-year-old girls took place from 2009-2016. In 2020, the oldest vaccinated cohort was 23 years old and had approached the age where risk of being diagnosed with cervical intraepithelial lesion grade 2 or worse (CIN2+) increases rapidly. The aim of this cohort study was to assess direct qHPV vaccine effectiveness (VE) against CIN2+ among Norwegian women aged 16-30 in 2007-2020. By using population-based health registries and individual-level data on vaccination status and potential subsequent CIN2+ incidence, we found 82% qHPV VE among women vaccinated before the age of 17.
Læs mere Tjek på PubMedJournal of Infectious Diseases, 25.04.2024
Tilføjet 25.04.2024
Abstract Background Cancer-related deaths for people living with HIV (PWH) are increasing due to longer life expectancies and disparately poor cancer-related outcomes. We hypothesize that advanced biological aging contributes to cancer-related morbidity and mortality for PWH and cancer. We sought to determine the impact of clonal hematopoiesis (CH) on cancer disparities in PWH.Methods We conducted a retrospective study to compare the prevalence and clinical outcomes of CH in PWH and people without HIV (PWoH) and cancer. Included in the study were PWH and similar PWoH based on tumor site, age, tumor sequence, and cancer treatment status. Biological aging was also measured using epigenetic methylation clocks.Results In 136 patients with cancer, PWH had twice the prevalence of CH compared to similar PWoH (23% vs 11%, p=0.07). After adjusting for patient characteristics, PWH were four-times more likely to have CH than PWoH (OR 4.1, 95% CI 1.3-13.9, p=0.02). The effect of CH on survival was most pronounced in PWH, who had a 5-year survival rate of 38% if they had CH (vs 59% if no CH), compared to PWoH who had a 5-year survival rate of 75% if they had CH (vs 83% if no CH).Conclusion This study provides the first evidence that PWH may have a higher prevalence of CH than PWoH with the same cancers. CH may be an independent biological aging risk factor contributing to inferior survival for PWH and cancer.
Læs mere Tjek på PubMedJournal of Infectious Diseases, 25.04.2024
Tilføjet 25.04.2024
Abstract Background Although antivirals remain important for the treatment COVID-19, methods to assess treatment efficacy are lacking. Here, we investigated the impact of remdesivir on viral dynamics and their contribution to understanding antiviral efficacy in the multicenter ACTT-1 clinical trial that randomized patients to remdesivir or placebo.Methods Longitudinal specimens collected during hospitalization from a substudy of 642 COVID-19 patients were measured for viral RNA (upper respiratory tract and plasma), viral nucleocapsid antigen (serum), and host immunologic markers. Associations with clinical outcomes and response to therapy were assessed.Results Higher baseline plasma viral loads were associated with poorer clinical outcomes, and decreases in viral RNA and antigen in blood but not the upper respiratory tract correlated with enhanced benefit from remdesivir. The treatment effect of remdesivir was most pronounced in patients with elevated baseline nucleocapsid antigen levels: the recovery rate ratio was 1.95 (95%CI 1.40-2.71) for levels >245 pg/ml vs 1.04 (95%CI 0.76-1.42) for levels
Læs mere Tjek på PubMedJournal of Infectious Diseases, 25.04.2024
Tilføjet 25.04.2024
Abstract Background Understanding the association between the immune response and the risk of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection has implications for forthcoming prevention strategies. We evaluated the association between antibody titers and the risk of infection for the general population during the Omicron-dominant phase.Methods This was a prospective cohort study of residents or people affiliated with institutions in Bizen City, which included 1,899 participants. We measured the titers of antibodies against SARS-CoV-2 repeatedly every 2 months from June 2022 to March 2023. Infection status was obtained from self-reported questionnaires and the official registry. We estimated risk ratios (RRs) for infection within 2 months of the date of each antibody measurement with 95% confidence intervals (CIs) based on antibody titer categories and spline functions.Results Compared with the
Læs mere Tjek på PubMedJournal of Infectious Diseases, 25.04.2024
Tilføjet 25.04.2024
Abstract Background Hepatitis C virus (HCV) and hepatitis B virus (HBV) cause chronic hepatitis with important clinical differences. HCV causes hepatic steatosis and insulin resistance, while HBV confers increased risk of liver cancer. We hypothesised these differences may be due to virus-specific effects on mitochondrial function.Methods Seahorse technology was utilised to investigate effects of virus infection on mitochondrial function. Cell based assays were used to measure mitochondrial membrane potential and quantify pyruvate and lactate. Mass spectrometry was performed on mitochondria isolated from HBV expressing, HCV infected and control cells cultured with isotope-labelled amino acids, to identify proteins with different abundance. Altered expression of key mitochondrial proteins was confirmed by real time PCR and western blot.Results Reduced mitochondrial function and ATP production were observed with HCV infection and HBV expression. HCV impairs glycolysis and reduces expression of genes regulating fatty acid oxidation, promoting lipid accumulation. HBV causes lactate accumulation by increasing expression of lactate dehydrogenase A, which converts pyruvate to lactate. In HBV expressing cells there was marked enrichment of pyruvate dehydrogenase kinase, inhibiting conversion of pyruvate to acetyl-CoA and thereby reducing its availability for mitochondrial oxidative phosphorylation.Conclusions HCV and HBV impair mitochondrial function and reduce ATP production. HCV reduces acetyl-CoA availability for energy production by impairing fatty acid oxidation, causing lipid accumulation and hepatic steatosis. HBV has no effect on fatty oxidation but reduces acetyl-CoA availability by disrupting pyruvate metabolism. This promotes lactic acidosis and oxidative stress, increasing the risk of disease progression and liver cancer.
Læs mere Tjek på PubMedJournal of Infectious Diseases, 25.04.2024
Tilføjet 25.04.2024
Abstract Background On-demand topical products could be an important tool for HIV prevention. We evaluated the safety, pharmacokinetics, and ex vivo pharmacodynamics of a tenofovir alafenamide/elvitegravir (TAF/EVG; 16 mg/20 mg) insert administered rectally.Methods MTN-039 was a Phase 1, open-label, single-arm, 2-dose study. Blood, rectal fluid (RF), and rectal tissue (RT) were collected over 72 hours (hr) following rectal administration of one and two TAF/EVG inserts for each participant. ClinicalTrials.gov Identifier: NCT04047420Results TAF/EVG inserts were safe and well tolerated. EVG and tenofovir (TFV) were detected in blood plasma at low concentrations: median peak concentrations after 2 inserts were EVG 2.4 ng/mL and TFV 4.4 ng/mL. RT EVG peaked at 2-hr (median 2 inserts= 9 ng/mg) but declined to BLQ in the majority of samples at 24-hr, whereas TFV-DP remained high >2,000 fmol/million cells for 72-hr with 2 inserts. Compared to baseline, median cumulative log10 HIV p24 antigen of ex vivo rectal tissue HIV infection was reduced at each timepoint for both 1 and 2 inserts (p
Læs mere Tjek på PubMedRebecca Akunzirwe, Simone Carter, Brenda N. Simbwa, Mercy W. Wanyana, Sherry R. Ahirirwe, Saudah K. Namubiru, Mackline Ninsiima, Allan Komakech, Alex R. Ario, Daniel Kadobera, Benon Kwesiga, Richard Migisha, Lilian Bulage, Helen N. Naiga, Jane F. Zalwango, Brian Agaba, Zainah Kabami, Marie G. Zalwango, Patrick King, Thomas Kiggundu, Peter C. Kawungezi, Doreen N. Gonahasa, Irene B. Kyamwine, Immaculate Atuhaire, Alice Asio, Sarah Elayeete, Edirisa J. Nsubuga, Veronica Masanja, Stella M. Migamba, Petranilla Nakamya, Rose Nampeera, Andrew Kwiringira, Mary Choi, Terrence Lo, Julie R. Harris
International Journal of Infectious Diseases, 25.04.2024
Tilføjet 25.04.2024
Both the case-fatality and the transmission of Ebola Disease (EBOD) can be reduced with early isolation of and appropriate care and treatment for EBOD patients at Ebola Treatment Units (ETUs) [1]. This requires active case finding, monitoring of contacts, and rapid isolation of contacts who become ill, [2,3] as well as strong health-seeking behavior of persons with EBOD symptoms [2,4]. As such, communities must be aware of EBOD-related symptoms, both the early non-specific symptoms as well as the late EBOD-related symptoms.
Læs mere Tjek på PubMedHui Xie, Junnan Zhang, Shuang Bai, Min Lv, Juan Li, Weixin Chen, Luodan Suo, Meng Chen, Wei Zhao, Shanshan Zhou, Jian Wang, Ao Zhang, Jianxin Ma, Fengshuang Wang, Le Yan, Dongmei Li, Jiang Wu
International Journal of Infectious Diseases, 25.04.2024
Tilføjet 25.04.2024
The Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) is a novel coronavirus responsible for the coronavirus disease 2019 (COVID-19) global pandemic [1-3]. As the pandemic progressed, new, more transmissible but less virulent variants, like the Omicron variant, emerged and became more dominant, further reducing the mortality rate [4-8]. The World Health Organization (WHO) eventually declared that the COVID-19 pandemic no longer constitutes a public health emergency of international concern on May 2023 [9].
Læs mere Tjek på PubMedWinston L. Winkler, Ige A. Geroge, Sumanth Gandra, Jonathan C. Baker, Anderanik Tomasian, Benjamin Northrup, Theodore L. Vander Velde, Travis J. Hillen, Chongliang Luo, Resten Imaoka, Gino M. Dettorre, Jack W. Jennings
International Journal of Infectious Diseases, 25.04.2024
Tilføjet 25.04.2024
Vertebral osteomyelitis diagnosis and etiologic identification is best accomplished by surgical sampling or by image-guided core needle biopsy and/or aspiration to obtain tissue for histopathologic examination and microbiological cultures [1,2]. The identification and antimicrobial susceptibility data of a causative microorganism is crucial, as the current standard of care is to treat patients with at least 6 weeks of antimicrobials, along with surgical therapy whenever possible [3,4].
Læs mere Tjek på PubMedBMC Infectious Diseases, 25.04.2024
Tilføjet 25.04.2024
Abstract Background In recent years, the prevalence of respiratory fungal diseases has increased. Polyene antifungal drugs play a pivotal role in the treatment of these conditions, with amphotericin B (AmB) being the most representative drug. This study aimed to evaluate the efficacy and safety of topical administration of AmB in the treatment of respiratory fungal infections. Methods We conducted a retrospective study on hospitalized patients treated with topical administered AmB for respiratory fungal infections from January 2014 to June 2023. Results Data from 36 patients with invasive pulmonary fungal infections treated with topical administration of AmB were collected and analyzed. Nebulization was administered to 27 patients. After the treatment, 17 patients evidenced improved conditions, whereas 10 patients did not respond and died in the hospital. One patient experienced an irritating cough as an adverse reaction. Seven patients underwent tracheoscopic instillation, and two received intrapleural irrigation; they achieved good clinical therapeutic efficacy without adverse effects. Conclusion The combined application of systemic antifungal treatment and topical administration of AmB yielded good therapeutic efficacy and was well-tolerated by the patients. Close monitoring of routine blood tests, liver and kidney function, and levels of electrolytes, troponin, and B-type natriuretic peptide supported this conclusion.
Læs mere Tjek på PubMedBMC Infectious Diseases, 25.04.2024
Tilføjet 25.04.2024
Abstract Background Studies have shown that Omicron breakthrough infections can occur at higher SARS-CoV-2 antibody levels compared to previous variants. Estimating the magnitude of immunological protection induced from COVID-19 vaccination and previous infection remains important due to varying local pandemic dynamics and types of vaccination programmes, particularly among at-risk populations such as health care workers (HCWs). We analysed a follow-up SARS-CoV-2 serological survey of HCWs at a tertiary COVID-19 referral hospital in Germany following the onset of the Omicron variant. Methods The serological survey was conducted in January 2022, one year after previous surveys in 2020 and the availability of COVID-19 boosters including BNT162b2, ChAdOx1-S, and mRNA-1273. HCWs voluntarily provided blood for serology and completed a comprehensive questionnaire. SARS-CoV-2 serological analyses were performed using an Immunoglobulin G (IgG) enzyme-linked immunosorbent assay (ELISA). Antibody levels were reported according to HCW demographic and occupational characteristics, COVID-19 vaccination and SARS-CoV-2 infection history, and multivariate linear regression was used to evaluate these associations. Results In January 2022 (following the fourth COVID-19 wave in Germany including the onset of the Omicron variant), 1482/1517 (97.7%) HCWs tested SARS-CoV-2 seropositive, compared to 4.6% in December 2020 (second COVID-19 wave). Approximately 80% had received three COVID-19 vaccine doses and 15% reported a previous laboratory-confirmed SARS-CoV-2 infection. SARS-CoV-2 IgG geometric mean titres ranged from 335 (95% Confidence Intervals [CI]: 258–434) among those vaccinated twice and without previous infection to 2204 (95% CI: 1919–2531) among those vaccinated three times and with previous infection. Heterologous COVID-19 vaccination combinations including a mRNA-1273 booster were significantly associated with the highest IgG antibody levels compared to other schemes. There was an 8-to 10-fold increase in IgG antibody levels among 31 HCWs who reported a SARS-CoV-2 infection in May 2020 to January 2022 after COVID-19 booster vaccination. Conclusions Our findings demonstrate the importance of ongoing COVID-19 booster vaccination strategies in the context of variants such as Omicron and despite hybrid immunity from previous SARS-CoV-2 infections, particularly for at-risk populations such as HCWs. Where feasible, effective types of booster vaccination, such as mRNA vaccines, and the appropriate timing of administration should be carefully considered.
Læs mere Tjek på PubMedBMC Infectious Diseases, 25.04.2024
Tilføjet 25.04.2024
Abstract Background Soil-transmitted helminthiasis (STH) refers to a set of parasitic illnesses caused by nematode worms and spread to people through faeces-contaminated soil. It is highly prevalent in low- and middle-income countries due to a lack of environmental sanitation and personal hygiene. Pregnant women are among the risk groups for infection by soil-transmitted helminths. Former studies of the disease burden among pregnant women in Ethiopia didn’t indicate the intensity of parasitic infection. The aim of this study was to assess the prevalence and associated factors of soil-transmitted helminths among pregnant women. Methods An institution-based cross-sectional study was conducted among 416 randomly selected pregnant women. The data were collected using a structured interview-administered questionnaire and a laboratory test. The Kato-Katz technique was used to diagnose soil-transmitted helminthiasis and determine the intensity of the infection. The collected data were entered into Epi-Data version 4.6 and exported to SPSS version 25 for analysis. Multivariate logistic regression analysis was used to identify independent predictors of soil-transmitted helminths at a p-value
Læs mere Tjek på PubMedBMC Infectious Diseases, 25.04.2024
Tilføjet 25.04.2024
Abstract Background Herpes Zoster is an age dependent disease and as such it represents a problem in the Italian social context, where the demographic curve is characterized by an overrepresentation of the elderly population. Vaccines against Herpes Zoster are available, safe and effective, however coverage remains sub-optimal. This study was therefore conducted to examine the variations in Herpes Zoster vaccine uptake and confidence across different regions in Italy. Methods This study utilized a cross-sectional computer-assisted web interview (CAWI) methodology. The survey was conducted by Dynata, an online panel provider, and involved 10,000 respondents recruited in Italy between April 11 and May 29, 2022. The sample was stratified based on geographic region, gender, and age group. Data management adhered to European Union data protection regulations, and the survey covered demographics, living conditions, and vaccination against herpes zoster (HZ), following the BeSD framework. Results The findings indicate regional disparities in herpes zoster vaccine uptake across Italy. Notably, the Islands region exhibits a particularly low vaccination rate (2.9%), highlighting the need for targeted interventions. The multivariate regression analysis showed that sociodemographic factors, limited access to healthcare services, and inadequate awareness of vaccine eligibility contribute to the lower uptake observed in this region. Conclusion In conclusion, this research emphasizes regional disparities in herpes zoster (HZ) vaccination uptake in Italy. Demographic, socioeconomic, and geographic factors impact individuals’ willingness to receive the vaccine. The study highlights the importance of awareness of vaccine eligibility and accessible vaccination facilities in increasing uptake rates.
Læs mere Tjek på PubMedBMC Infectious Diseases, 25.04.2024
Tilføjet 25.04.2024
Abstract Background Immunodeficient patients, particularly HIV patients, are at risk of opportunistic infections. Nontuberculous mycobacteria can cause severe complications in immunodeficient patients. Case Presentation We describe a 57-year-old HIV patient, primarily presented with coughs and constitutional symptoms, with a unique Mycobacterium genavense abdominal, pulmonary, and central nervous system infection, accompanied by intracranial masses. Conclusion The diagnosis of NTM, including M. genavense, must always be considered by clinicians in immunodeficient patients, especially those with HIV, who have a compromised immune system.
Læs mere Tjek på PubMedRicardo Soto-Rifo
Nat Rev Microbiol, 25.04.2024
Tilføjet 25.04.2024
Sandra March, Niketa Nerurkar, Anisha Jain, Linda Andrus, Daniel Kim, Charles A. Whittaker, Edward K.W. Tan, Sabine Thiberge, Heather E. Fleming, Liliana Mancio-Silva, Charles M. Rice, Sangeeta N. Bhatia
Science Advances, 24.04.2024
Tilføjet 24.04.2024
Ryan C. Burdick, Michael Morse, Ioulia Rouzina, Mark C. Williams, Wei-Shau Hu, Vinay K. Pathak
Science Advances, 24.04.2024
Tilføjet 24.04.2024
Kazutoyo MiuraYevel Flores-GarciaCarole A. LongFidel Zavala1Laboratory of Malaria and Vector Research, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Rockville, Maryland, USA2Department of Molecular Microbiology and Immunology, Johns Hopkins Bloomberg School of Public Health, Malaria Research Institute, Baltimore, Maryland, USA, Louisa A. Messenger, Gordon A. AwandareKwadwo Asamoah Kusi
Clinical Microbiology Reviews, 24.04.2024
Tilføjet 24.04.2024
Clinical Infectious Diseases, 24.04.2024
Tilføjet 24.04.2024
Abstract Vascular graft infection (VGI) is one of the most serious complications following arterial reconstructive surgery. VGI has received increasing attention over the past decade, but many questions remain regarding its diagnosis and management. In this review, we describe our approach to VGI through multidisciplinary collaboration and discuss decision-making for challenging presentations. This document will concentrate on VGI that impacts both aneurysms and pseudoaneurysms excluding the ascending thoracic aorta.
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