急性胃肠炎是一常见疾病。在亚非拉地区,估计每年有30～50亿急性腹泻病例。根据世界卫生组织调查,1980年在亚非拉地区有460万5岁以下儿童死亡是与胃肠炎有关。若腹泻大便中无细菌或原虫,或由无菌性粪便滤出液所引起的胃肠炎常被认为系病毒性胃肠炎。目前已确定其主要的病原体是Norwalk样病毒和轮状病毒。此外,还有腺病毒、星状病 Acute gastroenteritis is a common disease. In the Afro-Asia region, an estimated 3 to 5 billion acute diarrhea cases occur each year. According to the World Health Organization survey, 4.6 million children under the age of 5 were killed in gastroenteritis in Asia, Africa and Latin America in 1980. If there is no bacteria or protozoa in diarrhea stool, or gastroenteritis caused by sterile excrement filtrate is often considered a viral gastroenteritis. It has now been established that the major pathogens are Norwalk-like and rotavirus. In addition, there are adenovirus, astrocytomas