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1985～1987年我们在全国一些地区,进行了流行性非甲非乙肝炎调查,并在山东和新疆发现或证实本病爆发疫情3起,其中以1986～1987年新疆和田地区的疫情最重,该地仅洛浦县的多鲁、山普鲁等5个发病最多的乡(镇)即有病人15977例(1986.8～1987.4),死亡93例,死者中47例(50.54%)为孕妇.据在多鲁乡的抽样调查,约80%的家庭,近半数人口被累及;发病率以15～49岁人群最高,男女差别不显著.流行病学调查结果显示,本病不仅可因水源亦可因食物被本病病原体污染而形成爆发,接触传播作用不明显.用IEM在新疆病人粪便中看到的27～30nm病毒样颗粒是否为本病病原体尚待证实.
From 1985 to 1987, we conducted a survey of epidemic non-A non-B hepatitis in some areas of the country and found or confirmed three outbreaks of this disease in Shandong and Xinjiang, of which the epidemic was the heaviest in Hotan, Xinjiang in 1986-1987, There were 15977 patients (1986.8 ~ 1987.4) and 93 deaths (47.5%) in the five most-affected townships (towns) in Luopu County, Luopu County, In Duolu Township sample survey, about 80% of households, nearly half of the population were involved; the incidence of 15 to 49-year-old population was the highest, the difference was not significant between men and women epidemiological survey showed that the disease can not only because of water can also be Because food is contaminated by pathogens of this disease and form an outbreak, the contact transmission is not obvious.Image of 27-30nm virus-like particles seen in excrement of Xinjiang patients with IEM is yet to be confirmed.