Please use this identifier to cite or link to this item: https://doi.org/10.1016/0035-9203(93)90405-F
Title: Hepatitis a sero-epidemiology in Singapore: A changing pattern
Authors: Yap, I. 
Guan, R. 
Issue Date: 1993
Citation: Yap, I., Guan, R. (1993). Hepatitis a sero-epidemiology in Singapore: A changing pattern. Transactions of the Royal Society of Tropical Medicine and Hygiene 87 (1) : 22-23. ScholarBank@NUS Repository. https://doi.org/10.1016/0035-9203(93)90405-F
Abstract: Sera from 896 healthy volunteers between 15 and 56 years old were tested in 1987-1991 for immunoglobulin G antibody against the hepatitis A virus (IgG anti-HAV) The overall seroprevalence rate of IgG anti-HAV was 27%: it increased from 0.9% in the lO-19 years age group to 48.1% in the 40-49 years age group and was 100% in subjects over 50 years. There was no difference in anti-HAV seroprevalence between the sexes (29% among men and 26% among women) and races. A downward trend in anti-HAV seroprevalence was seen from 1987 (33%) to 1991 (21.4%). The level of exposure to the hepatitis A virus has decreased when compared with data obtained in 1975 and 1984-1985. Hepatitis A virus infection is no longer an infection of children and adolescents locally.
Source Title: Transactions of the Royal Society of Tropical Medicine and Hygiene
URI: http://scholarbank.nus.edu.sg/handle/10635/132526
ISSN: 00359203
DOI: 10.1016/0035-9203(93)90405-F
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