急性胃肠炎综合征是一组潜伏期短的自限性疾病,以腹泻、恶心、呕吐、腹痛、发热等症状为其特征。发病率很高,仅次于呼吸道疾患,常在家庭内传播,也可暴发流行。1975年亚非拉共有5亿小儿患腹泻,死亡达500～1800万人。病因:细菌(如肠炎杆菌、痢疾杆菌、致病性大肠杆菌等)占20～30％。病毒50％占非 Acute gastroenteritis syndrome is a group of self-limiting disease with short incubation period characterized by diarrhea, nausea, vomiting, abdominal pain and fever. High incidence, second only to respiratory diseases, often spread within the family, but also outbreaks. In 1975, 500 million children in Asia, Africa, and Latin America suffered from diarrhea, with deaths of 500-18 million. Etiology: bacteria (such as Enterocolitis, Shigella, pathogenic Escherichia coli, etc.) accounted for 20 to 30%. 50% of the virus accounted for non