一起由非产毒O1群小川型霍乱弧菌引起的感染性腹泻聚集性疫情调查分析  

Investigation and analysis of an infectious diarrhea aggregated epidemic situation caused by non-toxigenic Vibrio cholerae O1,Serotypes Ogawa

作　　者：郭敏建 王国华[1] GUO Min-jian;WANG Guo-hua(Tongxiang Municipal Center far Disease Control and Prevention,Tongxiang,Zhejiang 314500,China)

机构地区：[1]浙江省桐乡市疾病预防控制中心,浙江桐乡314500

出　　处：《中国卫生检验杂志》2020年第2期247-248,251,共3页Chinese Journal of Health Laboratory Technology

摘　　要：目的为查明一起非产毒O1群小川型霍乱弧菌引起的感染性腹泻疫情传染来源和传播方式,控制疫情蔓延,了解其流行病学特征和临床特征,为今后疫情防控提供依据。方法开展病例搜索,对所有病例及密切接触者开展详细个案调查,采集可疑食物标本开展溯源。结果本次疫情共发现4例确诊病例和1例带菌者,分布于2户家庭,罹患率为16. 67%和57. 14%;病例表现为腹泻、稀水样便;可疑饮食史均为明虾,明虾在同一流动摊贩购买,该摊贩明虾标本检出非产毒O1群小川型霍乱弧菌。结论本次疫情为流动摊贩所售明虾受到非产毒O1群小川型霍乱弧菌污染所致,明虾为本次疫情传染源。Objective To observe the source of infection and the spread mode of an infectious diarrhea aggregated epidemic situation caused by non-toxic Vibrio cholerae O1,Serotypes Ogawa,and to control its spread,so as to know its epidemiologic and clinical features for the epidemic future prevention and control. Methods We stated to search the cases and the close contacts,launched case investigation on them,and took suspicious food sample to trace to the source. Results Four confirmed cases and one Vibrio cholerae carrier were distributed in 2 families in the epidemic situation. The incidence rates of the two families were 16. 67% and 57. 14%. The case manifestation was diarrhoea and dilute water-like stool;the suspicious food was prawn which was bought from the same itinerant vendor and confirmed non-toxic Vibrio cholerae O1,Serotypes Ogawa positive.Conclusion The epidemic was caused by the prawn bought from an itinerant vendor and polluted by non-toxic Vibrio cholerae O1,Serotypes Ogawa. And the prawn is the infection source.

关 键 词：霍乱弧菌 非产毒株 O1群小川型 感染性腹泻 

分 类 号：R446.5[医药卫生—诊断学]