冀国强, 李颖, 马红梅, 张松建. 2013-2018年北京市顺义区腹泻病例中肠炎沙门菌和鼠伤寒沙门菌的流行特征分析[J]. 疾病监测, 2019, 34(11): 987-993. DOI: 10.3784/j.issn.1003-9961.2019.11.009
引用本文: 冀国强, 李颖, 马红梅, 张松建. 2013-2018年北京市顺义区腹泻病例中肠炎沙门菌和鼠伤寒沙门菌的流行特征分析[J]. 疾病监测, 2019, 34(11): 987-993. DOI: 10.3784/j.issn.1003-9961.2019.11.009
Guoqiang Ji, Ying Li, Hongmei Ma, Songjian Zhang. Epidemiological characteristics of Salmonella Enteritidis and Salmonella Typhimurium isolated from diarrhea patients in Shunyi, Beijing, 2013–2018[J]. Disease Surveillance, 2019, 34(11): 987-993. DOI: 10.3784/j.issn.1003-9961.2019.11.009
Citation: Guoqiang Ji, Ying Li, Hongmei Ma, Songjian Zhang. Epidemiological characteristics of Salmonella Enteritidis and Salmonella Typhimurium isolated from diarrhea patients in Shunyi, Beijing, 2013–2018[J]. Disease Surveillance, 2019, 34(11): 987-993. DOI: 10.3784/j.issn.1003-9961.2019.11.009

2013-2018年北京市顺义区腹泻病例中肠炎沙门菌和鼠伤寒沙门菌的流行特征分析

Epidemiological characteristics of Salmonella Enteritidis and Salmonella Typhimurium isolated from diarrhea patients in Shunyi, Beijing, 2013–2018

  • 摘要:
    目的分析2013 — 2018年北京市顺义区腹泻病例中肠炎沙门菌与鼠伤寒沙门菌流行特征,为科学防控沙门菌感染提供依据。
    方法收集2013 — 2018年北京市顺义区腹泻监测病例的流行病资料和粪便标本,分离培养沙门菌并进行血清学鉴定及脉冲场凝胶电泳分子分型,采用χ2检验对肠炎沙门菌、鼠伤寒沙门菌人群分布、临床症状进行统计分析。
    结果腹泻病例中沙门菌属检出率为5.63%(109/1 936),肠炎沙门菌和鼠伤寒沙门菌构成比分别为32.73%(36/110)和28.18%(31/110);肠炎沙门菌和鼠伤寒沙门菌年均检出率分别为1.85%和1.60%,后者波动范围明显大于前者,且呈现此消彼长的态势;肠炎沙门菌月检出率呈现4 — 5月、9 — 10月2个高峰,鼠伤寒沙门菌则呈现4、7、9月3个高峰;鼠伤寒沙门菌在北京市顺义区西部的检出率(2.49%)高于其他区域;肠炎沙门菌及鼠伤寒沙门菌分别出现2次和6次短时间内脉冲场凝胶电泳带型成簇。
    结论腹泻病例中肠炎沙门菌与鼠伤寒沙门菌分别具有一定的流行特征,从血清型水平分析沙门菌属流行特征更有利于发现潜在的暴发疫情,同时要做好“散在暴发”病例的流行病学调查工作,才能为科学防控非伤寒沙门菌感染提供依据。

     

    Abstract:
    ObjectiveTo analyze the epidemiological characteristics of Salmonella Enteritidis and Salmonella Typhimurium isolated from diarrhea patients in Shunyi district of Beijing during 2013–2018, and provide evidence for the effective prevention and control of diarrhea.
    MethodsIsolated Salmonella strains were from stool samples of diarrhea patients in surveillance project in Shunyi from 2013–2018. Serotyping and pulsed-field gel electrophoresis (PFGE) were conducted for the isolated strains of S. Enteritidis and S. Typhimurium, and χ2 test was conducted for the analyses on the population distribution and clinical symptoms of S. Enteritidis and S. Typhimurium infections.
    ResultsThe overall isolation rate of Salmonella was 5.63% (109/1 936), and the constituent ratios of S. Enteritidis and S. Typhimurium were 32.73% (36/110) and 28.18% (31/110). The isolation rates of S. Enteritidis and S. Typhimurium were 1.85% and 1.60% respectively, the latter's fluctuation range was significantly larger than the former, and the isolation rates of the two pathogens showed an annual one fall but another one rise trend. Two detection peaks were found for S. Enteritidis, i.e. during April - May and during September - October, and three detection peaks of S. Typhimurium were in April, July and September. The isolation rate of S. Typhimurium was higher in the western part of Shunyi (2.49%) than in other parts of Shunyi. PFGE pattern of S. Enteritidis showed two banding clusters in a short time, and PFGE pattern of S. Typhimurium showed six banding clusters in a short time.
    ConclusionS. Enteritidis and S. Typhimurium spread had certain epidemiological characteristics in diarrhea cases in Shunyi, the serotype level analysis is more conducive to discover potential outbreaks, and the epidemiological investigation of " sporadic outbreaks” should be carried out to provide evidence for the effective prevention and control of Salmonella infection.

     

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