Age-Specific Prevalence of Antibody to Rotavirus, Escherichia coli Heat-Labile Enterotoxin, Norwalk Virus, and Hepatitis A Virus in-a Rural Community in Thailand

Abstract
A serological survey in rural Thailand demonstrated that inhabitants acquired antibody to rotavirus between the ages of 6 months and 6 years, to Norwalk virus between the ages of 4 and 5 years, and to hepatitis A between the ages of 6 and 35 years. Antibody of Escherichia coli heat-labile toxin was most prevalent between 1 and 4 years and 18 and 25 years of age.