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Seroprevalence of SARS-CoV-2 Antibodies and Associated Factors in Bamako, Mali: A Population-Based Cross-Sectional Study in September 2022.
Influenza Other Respir Viruses
July 2024
International Center for Excellence in Research (ICER), Faculty of Medicine and Odontostomatology (FMOS), Faculty of Pharmacy (FAPHA), University Clinical Research Center (UCRC) at the University of Sciences, Techniques and Technologies of Bamako (USTTB), Bamako, Mali.
Background: The sero-epidemiological characteristics of SARS-CoV-2 infections in Mali are not yet well understood. This study assessed SARS-CoV-2 antibody seroprevalence and factors associated with antibody responses in the general population of Bamako, the capital city and epicenter of COVID-19, to assess the magnitude of the pandemic and contribute to control strategy improvements in Mali.
Methods: A cross-sectional survey was conducted in September 2022 to collect sociodemographic information, clinical characteristics, comorbid factors, and blood samples.
To analyze the epidemiological distribution characteristics, influencing factors, and infection rates of pertussis in the population of Henan Province. From 2022 to 2023, a cross-sectional survey was conducted to investigate the permanent population in Henan Province. Enzyme-linked immunosorbent assay (ELISA) was used to detect anti-pertussis toxin IgG (PT-IgG), analyze the antibody positivity rate (≥20 IU/ml) and median concentration (MC), and estimate the pertussis infection rate based on PT IgG ≥40 IU/ml.
View Article and Find Full Text PDFComparative evaluation of SARS-CoV-2 serological tests shows significant variability in performance across different years of infection and between the tests.
J Clin Virol Plus
November 2023
Centre of Research on Emerging and Re-Emerging Diseases (CREMER), Institute of Medical Research and Studies of Medicinal Plants (IMPM), Yaoundé, Cameroon.
Introduction: While the global COVID-19 pandemic is slowly coming under control, current efforts are focused on understanding the epidemiology of endemic SARS-CoV-2. The tool of choice for doing so remains serological tests that detect SARS-CoV-2 induced antibodies. However, the performance of these tests should be evaluated to ensure they comply with the specific performance criteria desired by each country that they are used in.
View Article and Find Full Text PDFDetection and phylogenetic analysis of kinetoplast DNA of Leishmania infantum infected humans, domestic dogs and sandflies in Northwest Iran.
PLoS One
March 2024
Department of Medical Parasitology & Mycology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran.
Article Synopsis
- Leishmaniasis is a vector-borne disease with three main forms: cutaneous, mucocutaneous, and the most severe visceral leishmaniasis (VL), which can be life-threatening if untreated.
- In Iran, the primary cause of VL is Leishmania infantum, which is zoonotic and can spread between humans, dogs, and sandflies.
- The research involved collecting blood and sandfly samples throughout 2017 to conduct a phylogenetic analysis of Leishmania species, revealing high genetic diversity among the strains of L. infantum found in the samples.
The burden of the coronavirus disease 2019 virus infection in Burkina Faso: Results from a World Health Organization UNITY population-based, age-stratified sero-epidemiological investigation.
Influenza Other Respir Viruses
November 2023
Epidemiology and Quality of Life Research Unit, INSERM U1231 Georges Francois Leclerc Centre-UNICANCER Dijon France.
Background: This study aimed to estimate the anti-SARS-CoV-2 antibody seroprevalence in the general population of Bobo-Dioulasso and Ouagadougou (Burkina Faso).
Methods: We collected from March to April 2021 blood samples from randomly selected residents in both main cities based on the World Health Organization (WHO) sero-epidemiological investigations protocols and tested them with WANTAI SARS-CoV-2 total antibodies enzyme-linked immunosorbent assay (ELISA) kits intended for qualitative assessment. We also recorded participants' socio-demographic and clinical characteristics and information on exposure to SARS-CoV-2.
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