沈阳市1995年发生三起因食用豆角引起的食物中毒，共170人，有115人发病，发病率为67％。其患者均在进餐后0．5h发病，主要症状为头晕、恶心、流诞、呕吐、腹痛、腹泻。中毒现场采集的生熟豆角，是南方豆角，同时采集本地豆角进行对照分析研究，采用豆角的浸出液进行血球凝集试 In 1995, there were 170 food poisoning caused by consumption of beans in Shenyang City. There were 170 people and 115 people were infected with the disease rate of 67%. The patients were 0.5h after eating onset, the main symptoms are dizziness, nausea, Christmas, vomiting, abdominal pain, diarrhea. Poisoned spot collection of ripe beans, beans in the South, while collecting local beans for comparative analysis of the use of leachate beans hemagglutination test