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Ashley M. GroshongNora E. GibbonsBrendan P. MooreWilliam T. BellamyJon S. Blevins1Department of Microbiology and Immunology, University of Arkansas for Medical Sciences, Little Rock, Arkansas, USA2Department of Medicine, UConn Health, Farmington, Connecticut, USA3Laboratory of Bacteriology, Rocky Mountain Laboratories, Division of Intramural Research, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Hamilton, Montana, USA4Department of Pathology, University of Arkansas for Medical Sciences, Little Rock, Arkansas, USAGuy H. Palmer
Infection and Immunity, 10.08.2024
Tilføjet 10.08.2024
Infection, 10.07.2024
Tilføjet 10.07.2024
Abstract Purpose Diagnosis of (European) Lyme neuroborreliosis has been based on clinical presentation, cerebrospinal fluid (CSF) pleocytosis and demonstration of intrathecal borrelial antibody synthesis (ITBAS) to document Borrelia burgdorferi s. l. infection. It is not known if other criteria to document Borrelia infection may contribute to the diagnosis. Methods We compared the sensitivity of three individual criteria (ITBAS, CSF Borrelia culture, and the presence of erythema migrans [EM]) to confirm the diagnosis of early Lyme neuroborreliosis in 280 patients ≥ 15 years of age evaluated at a Lyme borreliosis outpatient clinic in Slovenia. The patients had either radicular pain of new onset or involvement of a cranial nerve but without radicular pain, each in conjunction with CSF pleocytosis. Evaluation was of patients who had each of the three confirmatory criteria assessed, and for whom at least one criterion was positive. Results Analysis of 280 patients, 120 women and 160 men, median age 57 (range 15–84) years, revealed that ITBAS was the most frequently observed positive criterion (85.4%), followed by EM (52.9%), and by a positive CSF Borrelia culture (9.6%). Of the 280 patients, 154 (55%) met only one criterion (43.2% ITBAS only, 10.7% EM only, and 1.1% positive CSF culture only), whereas 42.1% met two criteria. Only 2.9% of patients were positive by all three criteria. Conclusion Although ITBAS was the most frequent criterion for confirmation for Borrelia infection, the presence of EM alone confirmed an additional 10.7% of patients and a positive CSF Borrelia culture alone added another 1.1%.
Læs mere Tjek på PubMedInfection, 9.07.2024
Tilføjet 9.07.2024
Abstract Purpose Diagnosis of (European) Lyme neuroborreliosis has been based on clinical presentation, cerebrospinal fluid (CSF) pleocytosis and demonstration of intrathecal borrelial antibody synthesis (ITBAS) to document Borrelia burgdorferi s. l. infection. It is not known if other criteria to document Borrelia infection may contribute to the diagnosis. Methods We compared the sensitivity of three individual criteria (ITBAS, CSF Borrelia culture, and the presence of erythema migrans [EM]) to confirm the diagnosis of early Lyme neuroborreliosis in 280 patients ≥ 15 years of age evaluated at a Lyme borreliosis outpatient clinic in Slovenia. The patients had either radicular pain of new onset or involvement of a cranial nerve but without radicular pain, each in conjunction with CSF pleocytosis. Evaluation was of patients who had each of the three confirmatory criteria assessed, and for whom at least one criterion was positive. Results Analysis of 280 patients, 120 women and 160 men, median age 57 (range 15–84) years, revealed that ITBAS was the most frequently observed positive criterion (85.4%), followed by EM (52.9%), and by a positive CSF Borrelia culture (9.6%). Of the 280 patients, 154 (55%) met only one criterion (43.2% ITBAS only, 10.7% EM only, and 1.1% positive CSF culture only), whereas 42.1% met two criteria. Only 2.9% of patients were positive by all three criteria. Conclusion Although ITBAS was the most frequent criterion for confirmation for Borrelia infection, the presence of EM alone confirmed an additional 10.7% of patients and a positive CSF Borrelia culture alone added another 1.1%.
Læs mere Tjek på PubMedLuo, S., Bao, F., Wu, H., Ma, W., Zhu, L., Huang, X., Yang, R., Peng, L., Gao, L., Wu, X., Zhong, L., Dong, Y., Li, B., Ma, W., Liu, A.
BMJ Open, 11.06.2024
Tilføjet 11.06.2024
Introduction Ixodes ticks are pivotal in transmitting diseases like Lyme disease and human granulocytic anaplasmosis, caused by Borrelia burgdorferi and Anaplasma phagocytophilum, respectively. These pathogens not only affect humans through single or multiple tick bites but also pose risks to animal hosts, leading to potential coinfections. Despite regional studies indicating significant prevalence, their global coinfection data remain sparse. This study aims to bridge this gap through a systematic review and meta-analysis of B. burgdorferi and A. phagocytophilum coinfections in Ixodes ticks worldwide. Addressing data limitations and study variability, it seeks to provide a nuanced understanding of coinfection patterns, their epidemiological implications and inform targeted prevention strategies. Methods and analysisFollowing Preferred Reporting Items for Systematic Review and Meta-analysis Protocols 2015 guidelines and PROSPERO registration, this study will undertake a thorough database search without constraints on language or publication date, using standardised screening and data extraction protocols. The quality and bias of studies will be evaluated using Joanna Briggs Institute tools. In the statistical analysis phase, conducted in R, we will initially determine the use of fixed or random-effects models based on the assessment of data heterogeneity. This choice will guide the framework for subsequent analyses. Within the selected model’s framework, we will perform subgroup analyses and meta-regression to investigate the effects of various factors, ensuring that each step is tailored to the initial model selection to maintain analytical consistency. Ethics and disseminationAs this study does not involve clinical research or data collection from subjects, ethical approval is not required. We will uphold ethical standards in synthesising and reporting data. Study outcomes will be published in peer-reviewed journals, communicating findings to the scientific community and contributing to the understanding of Ixodes tickborne diseases. PROSPERO registration numberCRD42023449735.
Læs mere Tjek på PubMedTian Tang, Ying Zhu, Yuan-Yuan Zhang, Jin-Jin Chen, Jian-Bo Tian, Qiang Xu, Bao-Gui Jiang, Guo-Lin Wang, Nick Golding, Max L Mehlman, Chen-Long Lv, Simon I Hay, Li-Qun Fang, Wei Liu
Lancet Microbe, 16.05.2024
Tilføjet 16.05.2024
The predicted high-risk regions are considerably larger than in previous reports. Identification, surveillance, and diagnosis of RFGB infections should be prioritised in high-risk areas, especially within low-income regions.
Læs mere Tjek på PubMedTian Tang, Ying Zhu, Yuan-Yuan Zhang, Jin-Jin Chen, Jian-Bo Tian, Qiang Xu, Bao-Gui Jiang, Guo-Lin Wang, Nick Golding, Max L Mehlman, Chen-Long Lv, Simon I Hay, Li-Qun Fang, Wei Liu
Lancet Microbe, 8.05.2024
Tilføjet 8.05.2024
The predicted high-risk regions are considerably larger than in previous reports. Identification, surveillance, and diagnosis of RFGB infections should be prioritised in high-risk areas, especially within low-income regions.
Læs mere Tjek på PubMedChristina ThompsonConnor WaldronSierra GeorgeZhiming Ouyang1Department of Molecular Medicine, University of South Florida, Tampa, Florida, USA, Guy H. Palmer
Infection and Immunity, 4.05.2024
Tilføjet 4.05.2024