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Serological response to avian influenza viruses among occupationally exposed population in Taiwan, a longitudinal cohort study, 2021-2023.
J Formos Med Assoc
December 2024
Centers for Disease Control, Ministry of Health and Welfare, Taipei, Taiwan, ROC.
The Taiwan Centers for Disease Control (TCDC) initiated longitudinal sero-epidemiological surveillance of avian influenza viruses (AIVs) targeting poultry workers exposed on affected farms since 2021. Convalescent-phase serum samples were collected from these workers 21-28 days post-outbreak identification. TCDC recontacted participants in subsequent years for repeat serological sampling.
View Article and Find Full Text PDFSeroconversion of SARS-CoV-2 Antibodies in Pregnant Women During the Second Wave of the COVID-19 Pandemic in India: A Longitudinal Study.
Cureus
November 2024
Department of Obstetrics and Gynecology, All India Institute of Medical Sciences, New Delhi, IND.
Aim This study aims to investigate the seroconversion of antibodies against SARS-CoV-2 infection in pregnant women during their first and third trimesters, specifically during the second wave of the COVID-19 pandemic. Methodology This is a longitudinal follow-up study of pregnant women during the second peak of the COVID-19 pandemic. Patients in their first trimester (six to 12 weeks) were tested for SARS-CoV-2 IgM and IgG levels, with a repeat test conducted in the third trimester (28-40 weeks) using the automated VIDAS® (bioMérieux SA, Marcy-l'Étoile, France) system.
View Article and Find Full Text PDFAnalysis of sero-epidemiological characteristics of varicella in healthy children in Wuxi, China.
Hum Vaccin Immunother
December 2024
Wuxi Center for Disease Control and Prevention, The Affiliated Wuxi Center for Disease Control and Prevention of Nanjing Medical University, Wuxi, China.
Article Synopsis
- * Out of 697 serum samples tested, 67.84% showed antibody positivity with a geometric mean concentration (GMC) of 190.97 mIU/mL, indicating strong immune response in vaccinated children.
- * The findings suggest that two doses of VarV significantly improve immunity against varicella compared to those unvaccinated, but anti-body levels decreased four years post-vaccination, highlighting the need for VarV in national immunization strategies.
Article Synopsis
- Whooping cough, caused by Bordetella pertussis and Bordetella parapertussis, is highly contagious and particularly dangerous for infants, with Africa having the highest incidence and mortality rates.
- A study conducted in Abidjan from April 2019 to July 2021 involved infants with coughs and their household contacts, finding a significant number of infections among both infants and family members.
- Results showed high circulation of pertussis in the community, emphasizing the need to address obstacles to accessing recommended booster vaccinations as suggested by the WHO.
Seroprevalence and risk factors for brucellosis amongst livestock and humans in a multi-herd ranch system in Kagera, Tanzania.
Front Public Health
November 2024
Nelson Mandela African Institution of Science and Technology, Arusha, Tanzania.
Background: Brucellosis remains a significant health and economic challenge for livestock and humans globally. Despite its public health implications, the factors driving the endemic persistence of at the human-livestock interface in Tanzania remain poorly elucidated. This study aimed to identify the seroprevalence of infection in livestock and humans within a ranching system and determine associated risk factors for disease endemicity.
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