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hepatitis E -'ē n a hepatitis that is rare in the U.S. but is common in some third-world countries, is usu. contracted from sewage-contaminated water, and is caused by a highly variable single-stranded RNA virus (species Hepatitis E virus) of uncertain taxonomic affinities but related to members of the family Caliciviridae
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a type of viral hepatitis caused by exposure to hepatitis E virus, transmitted by the fecal-oral route, usually via contaminated water. It is endemic in many tropical regions and in India and China. The incubation period is 15 to 60 days, and there is a prodromal phase. Chronic infection does not occur, but acute hepatitis may be fatal in pregnant women. Called also enterically transmitted non-A, non-B h. and ET-NANB h.Medical dictionary. 2011.