急性病毒性胃肠炎是一种最常见的侵犯各个年龄组的疾病。在美国,其发病率占第二位,仅次于感冒。最近的研究结果表明,在病毒性胃肠炎流行病学方面有重要意义的是两组病原:Norwalk样病毒和轮状病毒。病毒性胃肠炎的流行病学表现病毒性胃肠炎在流行病学方面主要表现为两种类型。一种是有特征性的流行,在学龄儿童、家庭接触者和成人中传播,是家庭和社会中胃肠炎爆发的原因。这种类型表现为一种暴发的自限性疾病,常持续24～48小时。体征和症状包括各种不同程度的呕吐、腹 Acute viral gastroenteritis is one of the most common diseases that violate all age groups. In the United States, the incidence rate of the second place, second only to a cold. Recent findings show that two groups of pathogens that are of significance in the epidemiology of viral gastroenteritis are Norwalk-like viruses and rotaviruses. Epidemiological manifestation of viral gastroenteritis Viral gastroenteritis is predominantly of two types in epidemiology. One is a characteristic epidemic that spreads among school-age children, domestic contacts and adults, and is responsible for the onset of gastroenteritis in the home and in society. This type of performance is an outbreak of self-limited disease, often lasting 24 to 48 hours. Signs and symptoms include varying degrees of vomiting, belly