Hepatitis non A-non B--report of a water-borne outbreak.

An outbreak of hepatitis was reported from a military unit. An investigation to determine the type and the cause of outbreak revealed that the maximum number of cases occurred in a barrack which shared a common water supply contaminated from an overflow from a septic tank. Another barrack which had separate supply from the same source was unaffected. Seromarker study in 8 cases showed immunity to Hepatitis A and no evidence for recent HBV infection. The disease was self limited in nature. No chronic sequelae were documented. In view of the spread a public health education plan is necessary (JPMA 38: of this disease through contaminated water supply 203, 1988).