2009年4月13日10:00,贵州省都匀市疾病预防控制中心接到该市甘塘镇卫生院报告,称自上午8时起,该镇林荫村某铁路工地相继出现腹泻、腹痛、恶心、呕吐等症状的病例。笔者于2009年4月13—16日对该事件进行了调查。经分析认为,这是一 At 10:00 on April 13, 2009, Duyun Municipal Center for Disease Control and Prevention in Guizhou Province received a report from Gantang Town Health Center in the city that it has successively started diarrhea and abdominal pain , Nausea, vomiting and other symptoms of the case. The author conducted an investigation into the incident on April 13-16, 2009. After analysis, this is one