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一、引言流行性腹泻(Epidemic diarrhoea)是由某些病毒引起的急性肠道传染病,过去曾有病毒性腹泻和急性传染性非细菌性胃肠炎(Acute infectious nonbacter-ial gastroenteritis)一类的名称,目前统称现名。本病病程短,病死率低,但传播迅速,波及面广泛,短期内可使一地人群发病率高达30～50%以上,因而已引起人们的广泛关注。根据国内外研究的现有成果,普遍认为引起流行性腹泻的病原体是两种类型的病毒,一种是诺瓦克病毒(Norwalk Viruses),另一种是轮状病毒(Rotaviruses),前者体积小(≤35nm),
I. INTRODUCTION Epidemic diarrhea is an acute enteric disease caused by certain viruses. In the past, viral diarrhea and Acute infectious nonbacter-ial gastroenteritis Name, now collectively referred to as the present name. The disease duration is short, case fatality rate is low, but the spread of rapid, widespread, short-term population can make the incidence of up to 30 to 50% or more, which has aroused widespread concern. According to the existing research results at home and abroad, it is generally accepted that the pathogens causing epidemic diarrhea are two types of viruses, one is Norwalk Viruses and the other is Rotaviruses. The former is small in size (≤35nm),