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目的通过流行病学调查和实验室检验结果分析本次疑似食源性疾病发病的原因,为今后预防类似的突发公共卫生事件提供科学依据。方法甘肃省酒泉市、肃南县疾病预防控制中心对采集的当天学生食用的乳制品、学校食堂当天的留样餐、发病学生及食堂炊事员的肛拭子,参照食品安全国家标准《食品卫生微生物学检验》和《食品卫生微生物学检验》进行志贺氏菌、蜡样芽孢杆菌、沙门氏菌、金黄色葡萄球菌等检验及依据《2011年食源性致病菌监测工作手册》进行检验。结果经酒泉市、肃南县疾病预防控制中心对采集的当天学生食用的乳制品4份、学校食堂的留样餐5份、发病学生及食堂炊事员的肛拭子14份,进行沙门氏菌、志贺氏菌、变形杆菌、蜡样芽孢杆菌、金黄色葡萄球菌、致病性大肠杆菌、粪链球菌、葡萄球菌肠毒素、氰化物、亚硝酸盐、氟乙酰胺、有机磷、磷化物、重金属(砷、汞、铅、镉、钡)、毒鼠强等检测,结果均为阴性。结论患者发病潜伏期差异较大,临床症状腹痛较明显,实验室检验结果无可靠证据,治疗无特异性,约有80%的患者仅有自述症状,而无特异性体征,结合流行病学调查和治疗情况综合分析,确认该事件为一起不明原因的食源性疾病。
Objective To analyze the causes of the suspected food-borne diseases through epidemiological investigation and laboratory test results so as to provide a scientific basis for the prevention of similar public health emergencies in the future. Methods Jiuquan City, Gansu Province Center for Disease Control and Prevention collected the same day the students eat dairy products, school canteens stay the same day meals, students and canteens anal rectal swab, with reference to national food safety standards “Food Hygiene Microbiological test ”and“ food hygiene microbiology test ”for Shigella, Bacillus cereus, Salmonella, Staphylococcus aureus and other tests and based on“ 2011 Foodborne Pathogen Monitoring Manual ”for testing. Results After Jiuquan City and Sunan CDC collected 4 samples of dairy products, 5 samples of school canteens, 14 samples of rectal swabs from students and canteen cooks, Escherichia, Proteus, Bacillus cereus, Staphylococcus aureus, pathogenic Escherichia coli, Streptococcus faecalis, staphylococcal enterotoxin, cyanide, nitrite, fluoroacetamide, organophosphates, phosphides, heavy metals (Arsenic, mercury, lead, cadmium, barium), tetramine and other tests, the results were negative. Conclusion There is a big difference in the incubation period of patients with clinical symptoms of abdominal pain is more obvious laboratory test results without reliable evidence, the treatment of non-specific, about 80% of patients with only self-reported symptoms, but no specific signs, combined with epidemiological investigation and A comprehensive analysis of treatment to confirm the incident as an unknown cause of food-borne illness.