2022年天津市1例非产毒白喉棒状杆菌携带者流行病学调查郭玉婷1,张颖1,李闻1,丁亚兴1,于爽2,刘莹1,张维1,曲江文1(1.天津市疾病预防控制中心,天津300011;2.天津市和平区疾病预防控制中心,天津300070)DOI:10.19914/j.CJVI.2023006通信作者:丁亚兴,Email:louisdyx@163.com第一作者Email:guoyuting_mcdull@163.com摘要:目的对天津市2022年1例报告疑似白喉病例进行鉴定。方法采集该病例咽拭子、全血和肺泡灌洗液标本,进行白喉棒状杆菌(Corynebacteriumdiphtheriae,Cd)核酸检测、细菌分离培养、生化鉴定和毒力基因检测。结果该病例为女性,29岁,无国外旅居史;2022年7月25日出现咳嗽等症状并住院治疗,无白喉样症状,咽拭子和肺泡灌洗液标本Cd核酸均阳性,分离培养和生化鉴定检出Cd,Cd毒力基因检测阴性,2022年8月8日治愈出院。结论该病例为非产毒Cd携带者,排除白喉诊断;需加强疑似白喉的及时发现、报告和规范处置。关键词:白喉;白喉棒状杆菌;毒力基因;带菌者中图分类号:R183.3;R184.6文献标识码:A文章编号:1006-916X(2023)01-0031-04Epidemiologicalinvestigationofanon-toxiccorynebacteriumdiphtheriaecarrierinTianjinin2022GuoYuting1,ZhangYing1,LiWen1,DingYaxing1,YuShuang2,LiuYing1,ZhangWei1,QuJiangwen1(1.TianjinCenterforDiseaseControlandPrevention,Tianjin300011,China;2.HepingDistrictCenterforDiseaseControlandPrevention,Tianjin300070,China)Abstract:ObjectiveTomakeadefinitivediagnosisinasuspecteddiphtheriapatientreportedinTianjinin2022.MethodsWecollectedpharyngealswabs,wholebloodsamples,andbronchoalveolarlavagefluidsamplesfromthepatientandtestedforCorynebacteriumdiphtheriae(Cd)nucleicacid,attemptedbacterialisolationandculture,conductedbiochemicaltests,andtestedforpresenceofavirulence-associatedgene.ResultsThepatientwasa29-year-oldfemalewithnohistoryoftravelingabroadwhodevelopedacoughonJuly25,2022andwashospitalizedforevaluationandtreatment.Shehadnosignsorsymptomsofdiphtheria.PharyngealswabandbronchoalveolarlavagefluidsampleswerepositiveforCdnucleicacid.Cdwasdetectedbybacterialcultureandbiochemicaltests,butsampleswerenegativeforCdvirulencegene.ThepatientrecoveredandwasdischargedfromthehospitalonAugust8,...