| an outbreak of suspected water-borne epidemic non-a non-b hepatitis in northern botswana with a high prevalence of hepatitis b carriers and hepatitis delta markers among patients. | from june to december 1985 273 cases of hepatitis and jaundice were diagnosed in maun, northern botswana. it was known before the outbreak that most adults were immune to hepatitis a virus, most had markers indicating past infection with hepatitis b virus (hbv), there was a mean prevalence of 13.6% (57/418) hbsag carriers, and a proportion of people had antibodies to hepatitis delta virus (hdv). there was evidence that faecal contamination of water supplies preceded the outbreak; the epidemic cu ... | 1989 | 2513670 |