摘要
目的了解杭州市食源性沙门菌感染的流行病学特征,为沙门菌感染的预防和控制提供科学依据。方法2019—2023年采集杭州市16家食源性疾病监测哨点医院感染性腹泻病例的粪便或肛拭子样本进行细菌培养,并对分离的沙门菌进行血清分型,分析食源性沙门菌感染的季节性分布,并对沙门菌感染者的人群分布特征及暴露食品信息进行统计分析。结果共收集25442例感染性腹泻患者及其样本,沙门菌总检出率4.72%(1200/25442),其中鼠伤寒沙门菌和肠炎沙门菌为优势血清型。人群分布中,0~<6岁年龄组检出率最高,为16.33%(476/2915),散居儿童(18.61%,400/2149)的检出率最高;夏秋季是沙门菌检出的高发季节,流行高峰区间为5月27日—9月29日,持续126 d,高峰日为7月29日;进食场所为家庭的病例中沙门菌检出率相对较高;散装食品、水果及其制品、肉及肉制品是沙门菌食源性疾病的高危食品。结论杭州市食源性沙门菌感染具有明显的人群及时间分布特征,流行的血清型以肠炎沙门菌和鼠伤寒沙门菌为主,相关部门应在流行高峰期加强对高危人群的针对性宣教工作,并加强对高危食物的监管。
Objective To understand the epidemiological characteristics of foodborne Salmonella infection in Hang zhou and provide a scientific basis for the prevention and control of Salmonella infections.Methods From 2019 to 2023,stool or rectal swab samples from infectious diarrhea cases reported at 16 sentinel hospitals in Hangzhou were collected for bacterial culture.Isolated Salmonella strains underwent serotyping,and seasonal distribution patterns of foodborne Salmonella infection were analyzed.Additionally,demographic characteristics of infected individuals and exposure information related to food sources were statistically analyzed.Results A total of 25442 infectious diarrhea cases and their samples were collected,with an overall Salmonella detection rate of 4.72%(1200/25442).The pre-dominant serotypes were Salmonella Typhimurium and Salmonella Enteritidis.The highest detection rate was found in the age group of 0 to<6 years,at 16.33%(476/2915),with the highest rate among children living in scattered households(18.61%,400/2149).Summer and autumn were identified as peak seasons for Salmonella detection,with a peak period from May 27 to September 29 lasting 126 days,peaking on July 29.Cases associated with home-cooked meals showed a relatively high detection rate of Salmonella.Bulk foods,fruits and their products,as well as meat and meat products were identified as high-risk food items for Salmonella infections.Conclusions Foodborne Salmonella infections in Hangzhou exhibit distinct demographic and temporal distribution characteristics,with Salmo-nella Typhimurium and Salmonella Enteritidis as the predominant serotypes.Relevant authorities should enhance tar-geted education for at-risk populations during peak seasons and strengthen the regulation of high-risk food items.
作者
王玲莉
郑伟
杨旭辉
蒋皓
曾文芳
吕烨
WANG Lingli;ZHENG Wei;YANG Xuhui;JIANG Hao;ZENG Wenfang;LYU Ye(Hangzhou Center for Disease Control and Prevention,Hangzhou Health Supervision Institution,Hangzhou,Zhejiang310021,China)
出处
《中国预防医学杂志》
2025年第6期728-734,共7页
Chinese Preventive Medicine
基金
杭州市医药卫生科技项目(A20241432)。
关键词
食源性沙门菌
流行病学
感染性腹泻
Foodborne Salmonella
Epidemiology
Infectious diarrhea
