Epidemiologic and serologic studies of acute viral hepatitis in Brazil's Amazon Basin.
D000208:Acute Disease; D000293:Adolescent; D000328:Adult; D001938:Brazil; D002648:Child; D002675:Child, Preschool; D005260:Female; D006525:Hepatitis, Viral, Human / Q000453:epidemiology*; D006801:Humans; D007223:Infant; D008297:Male; D008875:Middle Aged; D012698:Serologic Tests