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目的调查分析多起食用织纹螺引起食物中毒事件的原因,探讨预防织纹螺食物中毒的方法,为制定防控措施提供科学依据。方法 2012年7月8日-7月10日共报告食物中毒患者21例,其中重症6例。现场流行病学调查分析,食物中毒与患者发病前食用的织纹螺高度相关。采集剩余织纹螺样品和患者尿样送实验室检测和实验室检测相结合的方法。结果温州市龙湾区和瑞安市两地共报告的21例患者均为食用织纹螺中毒患者,临床表现为呼吸困难、全身乏力、四肢麻痹等症状,经对症治疗,治愈20例,死亡1例。4份患者尿液样本检出河豚毒素(TTX),其含量分别是135μg/L、31μg/L、5μg/L和3μg/L,1份食剩织纹螺样本中检出10.3 mg/kg的TTX。结论根据现场流行病学调查,结合临床表现和实验室检测结果,确定该起食用织纹螺食物中毒事件为河豚毒素中毒。
Objective To investigate and analyze the causes of food poisoning caused by more snails of food snails and to explore the methods of preventing food poisoning of snails and provide a scientific basis for making prevention and control measures. Methods From July 8, 2012 to July 10, 2012, 21 cases of food poisoning were reported, of which 6 cases were severe. Field epidemiological investigation and analysis, food poisoning and consumption of snails before the onset of high correlation. Collect the remaining snails and urine samples sent to the laboratory testing and laboratory testing methods combined. Results Twenty-one patients were reported as snail poisoning in Longwan District and Ruian City, Wenzhou City. The clinical manifestations were dyspnea, generalized weakness, paralysis of limbs and other symptoms. After symptomatic treatment, 20 cases were cured and 1 died . TTX was detected in urine samples of 4 patients, which were 135μg / L, 31μg / L, 5μg / L and 3μg / L, respectively, and 10.3mg / kg TTX. Conclusions According to the epidemiological survey in the field, combined with the clinical manifestations and laboratory test results, it was determined that the food poisoning of snail food was tetrodotoxin poisoning.