感染性腹泻是小儿时期仅次于呼吸道感染的常见病,婴幼儿时期发病率更高,而且有一定的死亡率,因此是危害小儿健康的重要疾病之一,一直受到大家的普遍关注。在全世界范围也非常重视对感染性腹泻的控制和预防,特别近十多年来在病原学、流行病学和发病机制等方面应用先进的分子生物学、免疫学等手段进行了广泛和深入 Infectious diarrhea is the second most common respiratory infection in infancy, the incidence of infants and young children is higher, and there is a certain mortality rate, so it is one of the important diseases that endanger the health of children, which has always been widely concerned. In the world, great attention has also been paid to the control and prevention of infectious diarrhea. In particular, advanced molecular biology, immunology and other means have been extensively and thoroughly applied in etiology, epidemiology and pathogenesis in recent ten years