Epidemiology of infectious hepatitis.
D000293:Adolescent; D000328:Adult; D002170:Canada; D002353:Carrier State; D002648:Child; D002675:Child, Preschool; D003153:Community Health Services; D003604:Czechoslovakia; D003718:Denmark; D004314:Down Syndrome / Q000150:complications; D004739:England; D005260:Female; D005506:Food Contamination; D006506:Hepatitis A / Q000150:complications / Q000453:epidemiology*; D006801:Humans; D007558:Italy; D008297:Male; D009426:Netherlands; D010507:Periodicity; D011044:Poland; D012423:Rural Health; D014481:United States; D014505:Urban Population; D014881:Water Supply