一起贝类毒素引发的食物中毒

A food poisoning caused by shellfish toxins

目的全面了解深圳市一起因食用海产品角螺所致食物中毒的发生原因和致病因素,以采取有效的预防控制措施。方法采用现场流行病学调查采集可疑食品进行检测。结果 18例病例主要症状为恶心、呕吐、腹痛;实验室检测结果:生角螺的螺肉中腹泻性贝类毒素(DSP)含量为147.04μg/100 g,肠腺中为88.51μg/100 g;熟角螺螺肉中为86.85μg/100 g,肠腺中为62.78μg/100 g均超标。结论该起事件是由于食用被DSP污染的角螺引起的食物中毒事件。市场监督管理部门应对该批角螺进行溯源调查。推广预防DSP污染的养殖技术,建立贝毒污染预警,加强贝毒研究、监测、管理、控制,防止类似事件发生。

[ Objective ] To identify the reason and pathogenic factor of a food poisoning caused by hemifusus, carry out the effective prevention and control measures. [ Methods] The samples of suspicious food were collected and investigated by field epidemiology. [ Results ] The main symptoms of 18 cases were nausea, vomiting and abdominal pain. The laboratory test results showed： the diar- rhetic shellfish poisoning { DSP} in meat and intestinal gland of raw hemifusus was 147.04 μg/100g and 88.51 μg/100g respec- tively, while DSP in meat and intestinal gland of cooked hemifusus was 86.85 μg/100g and 62.78 μg/100g respectively. All re- suits were higher than the standards. [ Conclusion ] This event is a food poisoning caused by hemifusus with DSP pollution. The market supervision and management department should carry out the tracing investigation in these hemifusus. It is necessary to pro- mote the aquaculture technology that can prevent DSP pollution, establish an early warning system of shellfish toxins pollution, aswell as strengthen the research, monitoring, management and control of shellfish toxins, to prevent the similar incidents.