近十年来发现了引起病毒性胃肠炎的两种主要病因,即Norwalk样病毒和轮状病毒。病毒性胃肠炎主要有两种流行病学不同的临床类型,一种是流行性的,引起家庭和学龄儿童、家庭接触者和成人等在社会上广泛发生胃肠炎。这种典型的类型呈暴发性、自限性疾病,常持续24～48小时。体征和症状包括不同程度的呕吐、腹泄、噁心、头痛、低热、厌食、全身不适 In the past decade, two major causes of viral gastroenteritis have been identified, namely Norwalk-like viruses and rotaviruses. Viral gastroenteritis mainly has two kinds of epidemiological different clinical types, one is epidemic, causing family and school-age children, family contacts and adults in society, gastroenteritis occurs. This typical type of fulminant, self-limiting disease, often lasting 24 to 48 hours. Signs and symptoms include varying degrees of vomiting, diarrhea, nausea, headache, fever, anorexia, general malaise