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[目的]查明该起食物中毒的病因和来源,预防此类事件的再次发生。[方法]按照食物中毒调查规范进行现场流行病学调查分析及实验室相关检测。[结果]该起食物中毒集中发病在3月26日,涉及本市3所幼儿园,共119名儿童发病,罹患率为19.6%(119/608);症状以呕吐为主,病情轻;患儿均暴露于某品牌同批次杯装高钙牛奶饮品;检测剩余乳制品中金黄色葡萄球菌肠毒素鉴定阳性,型别为SEA;患儿呕吐物、车间员工手部皮肤破损涂抹样和生鲜乳分离出血浆凝固酶阳性的金黄色葡萄球菌,其中菌株检出金黄色葡萄球菌肠毒素。[结论]本次事件是一起细菌性食物中毒,原因是饮用受金黄色葡萄球菌肠毒素污染的乳制品,来源是生鲜乳受污染。建议企业加强原料管理,尤其是奶牛场及生鲜乳的消毒、冷藏和使用环节的监管,及员工健康监护。
[Objective] To identify the causes and sources of food poisoning and prevent the recurrence of such events. [Method] According to the food poisoning investigation specification, the field epidemiological investigation and analysis and laboratory related testing were conducted. [Results] The incidence of food poisoning concentrated on March 26, involving three kindergartens in the city, a total of 119 children with the onset rate of 19.6% (119/608); symptoms of vomiting, mild illness; children Were exposed to the same batch of a brand cup of calcium beverage high calcium; detection of remaining dairy products Staphylococcus aureus enterotoxin identification positive, type SEA; children vomit, shop workers hand skin damage smear and fresh Plasma coagulase-positive Staphylococcus aureus was isolated from milk, in which Staphylococcus aureus enterotoxins were detected. [Conclusions] This incident is a bacterial food poisoning due to the contamination of dairy products contaminated with Staphylococcus aureus enterotoxin. The source is contaminated raw milk. It is suggested that enterprises should strengthen the management of raw materials, especially the supervision of the disinfection, refrigeration and use of dairy farms and raw milk, as well as the employee health supervision.