您现在的位置: 首页> 研究主题> 甲型副伤寒沙门菌

甲型副伤寒沙门菌

甲型副伤寒沙门菌的相关文献在2000年到2022年内共计119篇,主要集中在基础医学、内科学、临床医学 等领域,其中期刊论文103篇、会议论文4篇、专利文献82798篇;相关期刊64种,包括疾病监测、中华流行病学杂志、浙江预防医学等; 相关会议4种,包括首届传染病防控基础研究与应用技术论坛、第三次全国免疫诊断暨疫苗学术研讨会、第六次全国流行病学大会暨第四届全国中青年流行病学工作者学术会议等;甲型副伤寒沙门菌的相关文献由345位作者贡献,包括阚飙、闫梅英、郑伟等。

甲型副伤寒沙门菌—发文量

期刊论文>

论文:103 占比:0.12%

会议论文>

论文:4 占比:0.00%

专利文献>

论文:82798 占比:99.87%

总计:82905篇

甲型副伤寒沙门菌—发文趋势图

甲型副伤寒沙门菌

-研究学者

  • 阚飙
  • 闫梅英
  • 郑伟
  • 储从家
  • 孔繁林
  • 樊粉霞
  • 汪皓秋
  • 潘劲草
  • 严杰
  • 何浙生
  • 期刊论文
  • 会议论文
  • 专利文献

搜索

排序:

年份

    • 李毅; 谢爱蓉; 谢中必
    • 摘要: 目的分析一起甲型副伤寒暴发疫情菌株的分子分型特征,为病原菌的确定和暴发疫情的防控提供科学依据。方法利用生化试验、血清学试验对病原菌进行鉴定,并将分离到的病原菌进行微量肉汤稀释法药物敏感性试验、PFGE分子分型分析、全基因组测序,利用全基因组数据与沙门菌MLST标准数据库比对获得序列型别(ST)、cgMLST序列号以及rMLST序列号并进行聚类分析,通过细菌基因组分析平台fIDBA分析病原菌的耐药、毒力相关基因。结果11株沙门菌血清型均为甲型副伤寒沙门菌,具有100%相似性的PFGE带型,MLST、cgMLST、rMLST的型别均分别为ST129型、cgST-2191型、rST3678型,表明此次暴发疫情菌株从分子特征角度可诊断为同一传染源导致。对萘啶酸100%耐药,对链霉素100%中介。发现本次疫情菌株基因组均携带29种耐药基因。通过毒力因子数据库比对,均携带21类250种已知毒力基因,其中以Ⅲ型分泌系统、粘附、鞭毛等最为常见。结论本次暴发疫情是由共同来源的、具有相同分子分型特征的甲型副伤寒沙门菌引起。在病原溯源研究中,应用全基因组数据可更精细分析菌株遗传进化特征、亲缘关系及毒力基因、耐药基因携带情况,可以作为替代PFGE、MLST的技术用于更精准的传染病分子流行病学调查分析研究。
    • 欧璋亚; 伍丽萍; 黄仁刚; 徐开菊; 王蜀强
    • 摘要: 患者,女,67岁,因“间断发热1+月”于2021年8月31日收治入院。入院前1+月,患者出现发热,最高体温为38.6°C,伴畏寒、寒战、大汗淋漓、乏力,伴恶心、呕吐,于当地医院就诊,血常规:白细胞计数(WBC):10.06×10^(9)/L,中性粒细胞比率(NEUT%):80.0%,血红蛋白(HGB):111 g/L,C反应蛋白(CRP):68.73 mg/L。胸部CT提示∶主动脉瓣膜换术后,心包少量积液,心脏各房室未见增大。
    • 马小波; 梁朝霞; 陈应清; 唐文君; 吴勇; 霍巧维
    • 摘要: 目的 分析1例血液透析患者感染甲型副伤寒沙门菌的病因、临床感染特点,提高感染控制及其血流感染的认识.方法 报道血透患者血培养甲型副伤寒沙门菌1例.结果 患者血培养有甲型副伤寒沙门菌生长,生化鉴定硫化氢H2S(-),赖氨酸脱羧酶LYS(-),该菌对头孢三代、复方新诺明、左氧沙星、氯霉素与米诺环素等抗菌药物敏感,经头孢曲松治疗有效.结论 甲型副伤寒除了通过不洁饮食肠道传染,导管相关感染也可能发生,因感染无消化道症状,需引起临床及感控部门重视.
    • 张宏宾; 吴斌; 顾敏华; 高海英; 李玲; 刘晓骏; 葛以跃; 赵康辰; 陈银; 崔伦标
    • 摘要: 目的 了解2016年江阴市一起甲型副伤寒暴发菌株的基因组遗传和耐药特征.方法 采用二代测序技术(NGS),对分离到的9株菌株进行全基因组测序.经数据过滤和de novo组装后,获得基因组序列.将其与公共数据库下载国内流行株和国际参比菌株比较,获取单拷贝核心基因序列SNP,构建系统发生树.同时通过比对MLST数据库,获取MLST分型情况;通过比对ResFinder数据库和ARDB数据库获取耐药基因携带情况.采用Kirby-Bauer纸片扩散法进行15种临床常用抗生素敏感性测试.结果 组装后9株甲型副伤寒菌株均为4.5M左右,且均为ST85型;系统发生树分析显示这9株菌株聚在一起,且同云南元江甲型副伤寒暴发菌株的亲缘关系最近.9株菌株均对四环素、氯霉素、复方新诺明、萘啶酸、红霉素和阿奇霉素耐药,均携带了介导氨基糖苷类耐药的aac(6')-Iaa基因,以及介导喹诺酮类耐药的gyrAp、S83F和parCp.T57S突变,同时还携带ABC、RND和MF家族外排泵相关的耐药基因.结论 本暴发疫情是由共同来源的、具有多重耐药性ST85型甲型副伤寒沙门菌引起.应用基因组数据可更精细分析菌株遗传进化特征、亲缘关系及耐药基因携带情况,对临床用药有一定指导作用.
    • 梁绪东
    • 摘要: 目的:研究和分析甲型副伤寒沙门菌的临床分布及其对抗菌素的药物敏感情况,为临床合理用药提供参考.方法:因广西贺州市富川养殖厂猪粪污染水源暴发甲型副伤寒,在2018年8月-10月已有150人相继感染甲型副伤寒,为了解甲型副伤寒沙门菌对常用抗菌素的敏感情况及其分布,本研究经血培养出甲型付伤寒,临床分离出150株甲型副伤寒沙门菌,并对其进行敏感性鉴定,同时观察其分布情况.结果:150株甲型副伤寒沙门菌主要分布于传染科59株,占比39.33%,与其他科室分布情况相比,P<0.05.甲型副伤寒沙门菌对抗菌素的药物敏感均较高,除氨曲南和哌拉西林/他唑巴坦外,对其余抗菌素敏感率均达95.00% 以上;此外,甲型副伤寒沙门菌对乙基西梭霉素的耐药率最高,其次为复方新若明.结论:第三代头孢菌素 、第三代喹诺酮类抗菌药物均可用于治疗甲型副伤寒沙门菌,而氨基糖苷类药物可在临床治疗时适当配合应用.临床应结合药敏结果及当地情况,调整用药,以提高疗效,确保患者安全.
    • 翟立公; 王俊颖; 张小雨; 孟欣; 崔葆; 赵婉晴; 牛萍
    • 摘要: 以甲型副伤寒沙门菌为检测目标,通过比较基因组和聚合酶链式反应(polymerase chain reaction,PCR)验证方法筛选到4个该血清型的特异性基因,其中以gene_310作为该血清型的检测靶点设计引物PA23;并结合沙门菌属特异性引物139-141,建立一种甲型副伤寒沙门菌的PCR检测方法.优化PCR反应体系,并对该检测体系的特异性、灵敏度、抗干扰能力及人工污染样品检出限等方面进行评价.结果表明,当样品中含有甲型副伤寒沙门菌时,该体系能扩增出2条特异性条带,含有其他血清型的沙门菌仅能扩增出284 bp条带,不含沙门菌无扩增条带产生.灵敏度评价表明,基因组DNA和纯菌菌落检出限分别为32.4 pg/μL和4.3×103 CFU/mL;抗干扰能力实验显示,当鸡肉背景菌群和猪肉背景菌群浓度在106 CFU/mL和4.87×107 CFU/mL时,检出限为6.43×104 CFU/mL.当无菌的鸡肉和猪肉样品中添加NCFU/25 g甲型副伤寒沙门菌时,经10h增菌,检测结果为阳性(0<N<10).实验建立甲型副伤寒沙门菌PCR检测方法具有较好的特异性和灵敏度,有很好的应用价值,可在食品安全领域广泛应用.%In this study,four serotype-specific genes of Salmonella Paratyphi A were identified by comparative genomics and PCR.A PCR assay based on the gene_3105 and invA gene was developed and evaluated for the detection of S.Paratyphi A.The electrophoresis pattern showed only two bright specific bands at 284 bp and 384 bp in S.Paratyphi A.The PCR protocol was optimized and the specificity,sensitivity,anti-jamming capability and limit of detection (LOD) for artificially contaminated food were evaluated.The specificity results showed two bright specific bands for S.Paratyphi A,only one specific band at 284 bp for other Salmonella serotypes,no specific bands for non-Salmonella strains.The sensitivity of the PCR assay was 32.4 pg/μL and 4.3 × 103 CFU/mL for genomic DNA and pure colonies,respectively.In the presence of natural background flora enriched from chicken and pork breast samples,the detection limit was 6.43 × 104 CFU/mL.In artificially contaminated chicken and pork,the detection limit was N CFU/25 g after 10 h enrichment (0 < N < 10).In conclusion,the PCR assay for the detection of S.Paratyphi A is specific and sensitive,and has a good application value and can be widely used in the field of food safety.
    • 汪皓秋; 俞骅; 郑伟; 郑之北; 潘劲草
    • 摘要: 目的 了解近年来杭州地区甲型副伤寒沙门菌的基因组流行病学特征.方法 采用二代测序技术(NGS)对2002—2013年杭州地区分离的60株甲型副伤寒沙门菌代表株进行测序并下载公共数据库中的391株甲型副伤寒沙门菌基因组数据.以ATCC9150基因组为参考序列,鉴定所有基因组的单核苷酸多态性(SNP)位点并去除重组,构建基于SNP位点的系统发育树.用SRST2和多位点序列分型(MLST)工具扫描获得MLST型别,用SISTR扫描获得核心基因组多位点序列分型(cgMLST)型别,用SRST2和BLASTN扫描获得耐药基因.选择7种抗生素对60株杭州菌株进行药物敏感试验.结果 451株甲型副伤寒沙门菌基因组序列去重组后共鉴定得到19258个SNP位点,菌株平均距离为0.0070,距离小于0.05的占96.73%,提示451株甲型副伤寒沙门菌基因组差异较小.58株杭州ST85型分离株基因组序列高度相似,提示2002—2013年杭州地区甲型副伤寒疫情主要由ST85型菌株克隆传播引起.杭州菌株与5株国内5省菌株遗传距离较远(平均距离为0.057),与15株云南菌株距离较近(平均距离为0.0032),与柬埔寨菌株的距离最近(平均距离为0.0018),提示ST85型菌株存在跨国传播的可能性.2株杭州ST129型分离株中,HZ333与分离自江苏的两株菌近源(平均距离为0.0097),提示ST129型部分菌株存在国内传播的可能性.60株杭州菌株除2株未分型外,其余58株菌被分为9个cgMLST型别;公共数据库中391株菌除57株未分型外,其余334株菌被分为165个cgMLST型别.60株杭州菌株均携带耐药基因,其中56株菌携带aac6-Iy耐药基因,4株菌携带aac6-Iaa耐药基因;公共数据库中的391株甲型副伤寒沙门菌除了13株菌未携带耐药基因,其他378株菌均携带aac6-Iy耐药基因.60株杭州菌株中56株菌对7种抗生素均敏感;3株菌对复方新诺明耐药;1株菌对氨苄西林、四环素耐药.结论 2002—2013年杭州地区甲型副伤寒疫情主要由ST85型菌株克隆传播引起,该型菌株存在跨国传播的可能性;ST129型部分菌株存在国内传播的可能性.SNP位点分析技术分辨力高于脉冲场凝胶电泳(PFGE)技术,能够帮助我们更为精准的对疫情进行溯源.aac6-Iy是全球范围内甲型副伤寒沙门菌普遍携带的一种耐药基因.二代测序技术在传染病防控中有着良好的应用前景.%Objective To understand the genomic epidemiology of Salmonella paratyphi A strains circulating in Hangzhou area in recent years. Methods Next generation sequencing(NGS) technology was used to obtain genomes of 60 Salmonella paratyphi A strains isolated in Hangzhou area from 2002 to 2013. Genomes of 391 Salmonella paratyphi A strains were downloaded from the Sequence Read Archive (SRA) and Assembly database. After removing recombinations, the phylogenetic tree of all 451 genomes based on single nucleotide polymorphisms(SNP) was constructed using ATCC9150 as the reference. SRST2 and mul-tilocus sequence typing (MLST) were used to analyze sequence types(ST). The Salmonella In Silico Typ-ing Resource (SISTR) was used for core genome multilocus sequence typing (cgMLST). Resistant genes were screened out with SRST2 and BLASTN. Seven kinds of antibiotics were selected to conduct drug sus-ceptibility test in the 60 strains isolated in Hangzhou. Results A total of 19 258 SNP loci were found in 451 genomes. The average distance in the phylogenetic tree between strains was 0.007 0 and the distance less than 0.05 accounted for 96.73%, indicating a little difference in the 451 Salmonella paratyphi A ge-nomes. Fifty-eight Hangzhou strains of ST85 were highly similar in genomic sequences,which suggested that the clonal spread of ST85 strains caused the epidemic of paratyphoid A in Hangzhou area during 2002-2013. Salmonella paratyphi A strains isolated in Hangzhou were distantly related to five domestic strains (average distance:0.057),but close to 15 Yunnan strains(average distance:0.003 2) and closest to strains isola-ted in Cambodia (average distance: 0.001 8), suggesting the possibility of transnational spread of ST85 strains. Among two Hangzhou strains of ST129,HZ333 was closely related to two strains isolated in Jiangsu Province(average distance:0.009 7),suggesting the possibility of domestic transmission of ST129 strains. Except for two untyped strains,the other 58 strains were divided into nine cgMLST types. Except for 57 un-typed strains,the other 334 strains obtained from public databases were classified into 165 cgMLST types. Fifty-six out of the 60 Hangzhou strains carried the resistant gene aac6-Iy and the other four carried aac6-Iaa gene. Thirteen out of the 391 strains obtained from public databases didn′t carry resistant genes, while the other 378 strains carried the resistant gene aac6-Iy. Among the 60 Hangzhou strains,56 were sensitive to all of the seven kinds of antibiotics;three were resistant to cotrimoxazole and one was resistant to ampicillin and tetracycline. Conclusion The epidemic of paratyphoid A fever in Hangzhou from 2002 to 2013 was mainly caused by the clonal spread of ST85 strains that had the possibility of transnational spread. Some Hangzhou strains of ST129 had the possibility of domestic transmission. SNPs analysis had an advantage over pulse field gel electrophoresis(PFGE) technology in resolution and could be used to accurately trace the cause of paratyphoid A fever. Resistant gene aac6-Iy was generally carried. NGS technology had a promising prospect in the control and prevention of infectious diseases.
    • 汪皓秋; 郑伟; 俞骅; 张蔚; 潘劲草
    • 摘要: 目的 了解近年来杭州地区甲型副伤寒沙门菌的分子特征.方法 采用脉冲场凝胶电泳(PFGE)、多位点串联重复序列分析(MLVA)对2002—2013年杭州地区分离的72株甲型副伤寒沙门菌代表株进行分子分型及流行病学分析.结果 72株甲型副伤寒沙门菌分为11个PFGE(XbaⅠ、BlnⅠ)型别,6个MLVA型别.受检的34个可变串联重复序列(VNTR)位点中,1188K、2075K、2201K、4346K这4个位点表现出多态性.PFGE显示出较MLVA更高的分辨力.除X4B5、X7B7、X8B8、X9B9、X10B10这5种型别外,其他6种型别为同一个克隆系(相似度大于95%),该克隆系菌株占受试总菌株数的93.1%.结论 2002—2013年杭州地区甲型副伤寒疫情主要由同一克隆系的菌株引起,联合应用PFGE和MLVA有利于甲型副伤寒的流行病学调查.%Objective To analyze the molecular characteristics of Salmonella paratyphi A ( S. pa-ratyphi A) strains prevailing in Hangzhou area in recent years. Methods Pulse field gel electrophoresis ( PFGE) and multiple-locus variable-number tandem repeat analysis ( MLVA) were performed for molecular typing and epidemiological analysis of 72 S. paratyphi A strains isolated in Hangzhou area during 2002 to 2013. Results The 72 S. paratyphi A strains were divided into 11 PFGE ( by using restriction enzymes of Xba Ⅰ and Bln Ⅰ) and 6 MLVA types. Among the selected 34 variable number tandem repeat ( VNTR) sites, 4 sites (1188K, 2075K, 2201K and 4346K) showed high polymorphism, in which PFGE displayed a higher resolution than MLVA. Except for the 5 PFGE types of X4B5, X7B7, X8B8, X9B9 and X10B10, the other 6 PFGE types belonged to a same clone sharing a similarity of greater than 95%, and the S. Paratyphi A strains in that clone accounted for 93. 1% of the total strains isolated in Hangzhou. Conclu-sion The occurrence of paratyphoid A in Hangzhou area from 2002 to 2013 was mainly caused by S. para-typhi A strains belonging to the same clone. Combination of PFGE with MLVA was conducive to epidemiolog-ical investigation of paratyphoid A.
    • 王树坤; 王志刚; 张晓和; 阳波; 吴强; 阚飙; 周燕华; 杨汝松; 闫梅英
    • 摘要: Objective To identify the source and to comment on control program regarding an outbreak of paratyphoid A fever in a county,through field studies.Methods Descriptive epidemiological methods were adopted to describe the epidemiological characteristics of the outbreak,which occurred in Yuanjiang county,Yunan province between 2010-2011,China.Case-control study with environmental investigation was performed to identify related risk factors and pathogens while isolation and susceptibility on the suspected pathogens were conducted.Subsequently,intervention and preventive measures were taken for the control of the outbreak.Results A total of 600 cases were diagnosed and reported as paratyphoid fever A which spread over the whole Yuanjiang county,including 10 townships with different incidence rates.The disease was spatially clustered and the prevalence rates in these townships decreased with increasing distances from the polluted fields.Data from the case-control study discovered that consumption of raw vegetables was the main risk factor associated with this outbreak of paratyphoid fever (OR=65.3,P< 0.001).Management of patients did not meet the requirements while feces and urine of the outpatients polluted the wastewater system in the city.Salmonella paratyphi A isolates were identified from the improperly disinfected wastewaters in hospitals and city systems,respectively.After the measures as prohibiting the planting of vegetables in contaminated fields and disinfection of hospital wastewater were taken,the outbreak subsided.Conclusions Urban and hospital wastewater used for vegetables irrigation together with the tradition of eating uncooked vegetables seemed responsible for the outbreak of this paratyphoid fever.Intervention programs carried by the local government played a key role in controlling this large outbreak.%目的 现场调查一起甲型副伤寒暴发疫情的原因并进行处置.方法 对2010-2011年发生在云南省元江县的一起甲型副伤寒暴发进行流行病学特征描述,采用病例对照研究、环境卫生学检测调查引起暴发的危险因素及污染源,对病例标本进行病原分离及耐药检测,针对流行病学及实验室检测结果采取控制措施.结果 全县10个乡镇均有甲型副伤寒病例发生,2010年4月至2011年8月期间共报告病例600例,各乡镇发病率不同且发病水平随着与城区受污染蔬菜地距离增加呈减弱趋势.病例对照研究结果发现,吃生蔬菜是甲型副伤寒暴发的主要危险因素(OR=65.3,P<0.001).调查发现病例管理不规范,病例排泄物进入城区污水沟.医院和城区污水中分离到甲型副伤寒沙门菌.采取政府主导的禁售及禁种污染田蔬菜并加强医院污水消毒等措施后,暴发得到有效控制.结论 城区、医院污水用于蔬菜田灌溉和生吃蔬菜区域性习惯共同作用促成污水-蔬菜-人群的传播循环,导致该起大型暴发流行.以政府为主导的干预措施对控制暴发起到了关键作用.
    • 任晓莉; 周富昌; 张蕾; 金坚
    • 摘要: 目的:研究伤寒甲型副伤寒结合疫苗在在动物身上产生的抗体抵挡伤寒和甲型副伤寒沙门菌的攻击情况。方法:用分别含2.5μg伤寒V i多糖和甲型副伤寒O多糖、伤寒甲型副伤寒结合疫苗免疫小鼠,免疫结束后9~11天分别用伤寒沙门菌和甲型副伤寒沙门菌进行攻击,观察小鼠存活情况,同时跟同剂量伤寒V i多糖和甲型副伤寒O多糖组进行比较。结果:伤寒甲型副伤寒结合疫苗在抵挡毒菌攻击方面比单纯的伤寒V i多糖/甲型副伤寒O多糖组表现了更好的保护力。结论:我公司研制的伤寒甲型副伤寒结合疫苗在小鼠身上产生的抗体在抵挡毒菌攻击方面表现了很好的保护力。
  • 查看更多

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号