Report on hepatitis. Safety Committee--California Water Pollution Control Association.
D000293:Adolescent; D000328:Adult; D002140:California; D002648:Child; D002675:Child, Preschool; D006506:Hepatitis A / Q000453:epidemiology*; D006801:Humans; D007223:Infant; D012722:Sewage; D014481:United States
D012722:Sewage