1997年1月8日.我县某单位王××家4人因食用河豚鱼发生中毒.报告如下;王××家5人.晚餐时食用清炖鱼及少量鱼汤、馒头、玉米粥.约两小时后,4人先后出现口唇、舌和手指刺疼.恶心、呕吐、里急后重、腹泻.四肢无力、发冷、口唇、指尖和肢端处知觉麻痹.眩晕等症状,另1人因嫌鱼腥味只食馒头、玉米粥.未发病;4名中毒者.在县医院经及时催吐、洗胃、导泻及对症处理.8天后均康复出院.因4名患者共同进食清炖鱼2小时后.先后出现大致相同的症状.故对可疑食物清炖鱼进行了调查.在 January 8, 1997. County, a unit of Wang × × home 4 due to consumption of puffer fish poisoning. The report is as follows; Wang × × home 5. Eat fried fish and a small amount of fish soup, steamed bread, polenta. Two hours later, four people had lips, tongue and fingers stinging nausea, vomiting, tenesmus, diarrhea, limb weakness, cold, lips, fingertips and acupuncture points at the paralysis. Fishy taste only steamed bread, polenta. No incidence; 4 poisoning. In the county hospital after a timely induce vomiting, gastric lavage, cathartic and symptomatic treatment .8 days after all were discharged .Being 4 patients eat stewed fish 2 hours Later, there have been almost the same symptoms. Therefore, the suspect food was cleaned fish investigation.