Hepatitis B surface antibody levels among health-care personnel vaccinated against hepatitis B in a teaching hospital in South India

Autor: Bina Thomas, Anu Mohandas, V K Jayadev, V Bindu
Jazyk: angličtina
Rok vydání: 2022
Předmět:
Zdroj: Indian Journal of Community Medicine, Vol 47, Iss 2, Pp 262-265 (2022)
Druh dokumentu: article
ISSN: 0970-0218
1998-3581
DOI: 10.4103/ijcm.ijcm_600_21
Popis: Background: Hepatitis B virus infection is a global health priority, and health-care personnel (HCP) have 10 times higher prevalence than the general population. Seromonitoring identifies those with low titers and vaccine nonresponders with increased risk. Objective: The objective of the study was to assess hepatitis B surface antibody (anti-HBs) titers and associated factors among HCP vaccinated against hepatitis B in a teaching hospital in Kerala. Methods: A cross-sectional study was done among 454 vaccinated HCP, and anti-HBs antibody titers were assessed by enzyme-linked immunosorbent assay method. Results: Participants included 162 (35.7%) doctors, 132 (29.3%) nursing and laboratory personnel, and 160 (35.3%) supporting staff. The mean age was 38.06 ± 11.33 years, and 72% were female. Majority (92.5%, 420) were seroprotected and 78.9% (358) with high (>100 mIU) titers. Moderate (10–100 mIU) and low (10 years since vaccination, and age >40 years were independent predictors for poor seroprotection, while increasing doses and boosters were positively associated. Conclusions: Majority of vaccinated HCP were seroprotected. Incomplete schedules, older age, and prolonged time since vaccination can lead to decline in titers, and periodical seromonitoring should guide hepatitis B revaccination strategies.
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