戊型肝炎既往称为肠道传播的非甲非乙型肝炎。世界上首次有记载的本病流行系发生于1955～1956年新德里,共计发病97000例,其中29300例为黄疽型肝炎。1980年Khuroo等报告,1978年11月～1979年4月克什米尔流域发生本病流行。1983年Balayan等首次用成型肝炎病人粪便经口感染一名志愿者获得成功,并从急性期粪便中用免疫电镜检测到 Hepatitis E, formerly known as gut-transmitted non-A, non-B hepatitis. The world’s first recorded endemic disease occurred in New Delhi 1955 ~ 1956, a total of 97,000 cases, of which 29,300 cases of jaundice hepatitis. In 1980, Khuroo et al reported that the epidemic occurred in Kashmir watershed from November 1978 to April 1979. In 1983, Balayan et al successfully orally infected a volunteer for the first time with stool from patients with hepatitis and detected it by immunoelectron microscopy from the excrement of acute phase