The declining pattern of seroepidemiology of hepatitis A virus infection among adolescents in Bangkok, Thailand.
Southeast Asian J Trop Med Public Health
;
1997 Mar; 28(1): 154-7
Article
in English
| IMSEAR
| ID: sea-30736
ABSTRACT
Hepatitis A virus (HAV) is a health problem in countries where seroepidemiology shows changes from hyperendemicity to intermediate endemicity. Throughout the last decade, we studied, in Bangkok, the seroprevalence of hepatitis A virus antibody (anti-HAV) among adolescents of different age groups. In 1996, 245 serum specimens from children aged between 10 and 19 were tested for anti-HAV by ELISA method. The results were compared to those obtained in 1987 and 1993 from students of the same age and attending the same school. Anti-HAV was detected in 31.4%, 14.6% and 12.7% of school children in the years 1987, 1993 and 1996, respectively. Each year, it was found that an increasing prevalence of anti-HAV was related to an increasing age. From 1987 to 1996, the age specific prevalence of anti-HAV was markedly decreased in younger children. The surveillance of the epidemiological trend of HAV infection is important for implementing preventive measures and for controlling the disease.
Full text:
Available
Index:
IMSEAR (South-East Asia)
Main subject:
Thailand
/
Urban Population
/
Female
/
Humans
/
Male
/
Hepatitis Antibodies
/
Seroepidemiologic Studies
/
Child
/
Population Surveillance
/
Incidence
Type of study:
Incidence study
/
Observational study
/
Prevalence study
/
Prognostic study
/
Risk factors
/
Screening study
Country/Region as subject:
Asia
Language:
English
Journal:
Southeast Asian J Trop Med Public Health
Year:
1997
Type:
Article
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