腹泻病为多种病原多种因素引起的以大便次数增多和大便性状改变为特点的一组疾病,是儿童患病和死亡的主要病因,也是营养不良的重要病因。我国卫生部疾病控制司的调查结果显示,我国每年有8.36亿人次患腹泻,其中5岁以下儿童占3亿人次,腹泻病年发病率约为 Diarrhea is caused by a variety of pathogens, a group of diseases characterized by increased stool frequency and changes in stool traits. It is the main cause of childhood illnesses and deaths and an important cause of malnutrition. According to a survey conducted by the Disease Control Division of the Ministry of Health in China, there are 836 million people suffering from diarrhea every year in our country, of which 300 million children under 5 years of age have a morbidity of about