云南省中缅边境孟连口岸登革热流行状况调查

发布时间：2018-06-13 17:52

本文选题：登革热 + 白纹伊蚊　；参考：《中国病原生物学杂志》2015年05期

【摘要】：目的了解云南孟连口岸登革热流行状况,为边境登革热防治提供科学依据。方法采用酶联免疫法检测孟连口岸及其对应的缅甸居民健康人群血清登革热病毒IgG抗体,采用登革热病毒抗体检测试剂盒检测疑似登革热病人血清IgG和IgM抗体,采用定时、定点方法调查登革热媒介成蚊密度和幼虫指数。结果 2011年共采集中国居民健康人群血清202份,其中登革热病毒IgG阳性3份,阳性率1.49%;缅甸口岸采集缅甸居民血清113份,登革热病毒IgG阳性13份,阳性率12.62%。2008-2014年在孟连口岸共监测跨境缅甸居民和本国居民疑似登革热病例518人,登革热病毒IgM阳性12例,阳性率为2.32%,均为中国居民到缅甸边境地区伐木或淘金人群;IgG阳性30例,阳性率为5.79%,其中18名为缅甸居民,12名中国居民。共监测孟连口岸本地未有出入缅甸史居民175人,登革热病毒IgM和IgG均为阴性;共捕获8种7 203只蚊虫,其中白纹伊蚊为当地口岸优势蚊种,占捕获蚊虫总数的69.17%,密度高峰期为7月;共监测5 837个容器,阳性容器232个,其中6~10月伊蚊幼虫平均布雷图指数(BI)分别为20、29.5、24.5、14.5、9.31,容器指数(CI)分别为4.05、5.46、4.85、3.11、2.46,房屋指数(HI)分别为16.36、19.09、16.82、12.76、7.24,千人指数分别为42.64、63.35、52.63、30.02、19.49;未发现埃及伊蚊成蚊和幼虫。结论与孟连县接壤的缅甸边境地区登革热流行程度高,孟连口岸登革热媒介白纹伊蚊种群密度较高,存在登革热疫情隐患,应加强口岸登革热疑似病例和媒介的监测。
[Abstract]:Objective to understand the epidemic situation of dengue fever at Menglian port, Yunnan, and to provide scientific basis for the prevention and control of dengue fever at border. Methods Serum dengue virus IgG antibody was detected by enzyme-linked immunosorbent assay (Elisa) in Menglian port and its corresponding Myanmar resident healthy population, and serum IgG and IgM antibodies of suspected dengue fever patients were detected by dengue virus antibody detection kit. The density and larval index of dengue vector mosquitoes were investigated by fixed-site method. Results in 2011, 202 sera were collected from healthy Chinese residents, of which 3 were positive for dengue virus IgG, the positive rate was 1.490.113 sera were collected from Myanmar residents and 13 were positive for dengue virus IgG. From 2008 to 2014, 518 suspected cases of dengue fever were monitored at Menglian port, 12 of them were positive for dengue virus IgM, and the positive rate was 2.322.The positive rate was 30 cases for Chinese residents who had been logging or gold mining in the border area of Myanmar. The positive rate was 5.79, of which 18 were Myanmar residents and 12 Chinese residents. A total of 175 local residents with no history of entering and leaving Myanmar at Menglian Port were monitored, and both dengue virus IgM and IgG were negative. A total of 7 203 mosquitoes of 8 species were captured, among which Aedes albopictus was the dominant mosquito species at the local port. Accounting for 69.17% of the total number of mosquitoes caught, the peak density was July; 5,837 containers were monitored, 232 positive containers, From June to October, the average mine-laying index (BI) of Aedes mosquito larvae was 202.29.5 (24.5N) (14.59.31), the container index (CI) was 4.055.46 (4.853.112.46), the housing index (HII) was 16.3619.019.916.812.77.24, and the thousand population index was 42.644 (63.33.33.35) and 52.6330.02 (19.49) respectively. No adult and larva of Aedes aegypti was found. Conclusion the epidemic degree of dengue fever is high in the border area of Myanmar bordering Menglian County, and the population density of Aedes albopictus vector in Menglian port is relatively high, and there is a hidden danger of dengue fever epidemic situation. The surveillance of suspected cases and vectors of dengue fever at Menglian port should be strengthened.
【作者单位】：孟连县疾病预防控制中心;云南省虫媒传染病防控研究重点实验室(筹建)云南省虫媒病毒研究中心云南省寄生虫病防治所;
【基金】：国家自然科学基金项目(No.30960327,30660160,81160357) 云南跨境疟疾/登革热联防联控试点合作项目(No.201302)
【分类号】：R512.8

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