急性感染性腹泻仍然是全球范围的常见病,其发病率在发展中国家尤高。根据WHO的统计,每年全世界约有7.5～10亿人次患急性感染性腹泻。急性感染性腹泻的病原体可为细菌、病毒、原虫或肠道寄生虫等,在不同时期及不同地区,急性感染性腹泻的病原体有所不同。目前我国所见的急性感柴性腹泻病原体以细菌最多见,病毒次之,再次为阿米巴原虫,肠道寄生虫感染引起的急性感染性腹泻最少见。在细菌性急性感染性腹泻中,则以志贺氏菌为最常见,大肠埃希菌和空 Acute infectious diarrhea is still a common disease worldwide and its incidence is particularly high in developing countries. According to WHO statistics, there are between 750 and 1 billion people suffering from acute infectious diarrhea each year in the world. The pathogens of acute infectious diarrhea may be bacteria, viruses, protozoa or intestinal parasites, etc. The pathogens of acute infectious diarrhea are different at different times and in different areas. At present, acute diarrhea pathogens in our country have the most bacteria, the second is virus, and the second is amoeba. The most common acute infectious diarrhea caused by intestinal parasitic infection. In bacterial acute infectious diarrhea, Shigella is the most common, Escherichia coli and empty