Peridomestic colonization of Triatoma longipennis (Hemiptera, Reduviidae) and Triatoma barberi (Hemiptera, Reduviidae) in a rural community with active transmission of Trypanosoma cruzi in jalisco state, Mexico
Peridomestic colonization of Triatoma longipennis (Hemiptera, Reduviidae) and Triatoma barberi (Hemiptera, Reduviidae) in a rural community with active transmission of Trypanosoma cruzi in jalisco state, Mexico
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DOI：
10.1016/j.actatropica.2007.02.007
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发表时间：
2007-03-01
期刊：
影响因子：
2.7
通讯作者：
Lozano-Kasten, Felipe
中科院分区：
文献类型：
--
作者：
Breniere, Simone Frederique;Bosseno, Marie-France;Lozano-Kasten, Felipe
霉菌的感染可能是墨西哥哈利斯科州恰加斯病传播的主要风险因素。2003年7月至9月对一个典型村庄进行了昆虫学和血清学调查。走访了100个住宅的周边地区，并在369个可能的地点人工搜索了三联地雷。共捕捉到1821只(93.2%)长盘海龟和巴贝氏海燕。这两种植物经常共生。成虫指数分别为60%和16%。龙虾在整个村子里都发生了。长盘金龟子(93%)和巴贝里金龟子(75%)的定殖度指数较高，表明这两个物种已经适应了周围型生境。长盘斑潜蝇的虫口数量大于巴氏斑潜蝇。在38%的阳性点位上发现了5个很大的长盘虫菌落，而只有1到2个虫子出现，这表明有强烈的扩散活动。这两个物种都有很高的克氏锥虫感染率(46%)。只检测到T-CRUZI血统。人类血清阳性率为1.8%。这项研究从昆虫学的角度概述了墨西哥一个村庄的三聚氰胺定植情况，并强调了目前恰加斯病传播的风险。(C)2007 Elsevier B.V.保留所有权利。
Infestation of peridomiciles is likely a major risk factor for Chagas disease transmission in Jalisco state, Mexico. An entomological and serological survey of a typical village was conducted between July and September 2003. The peridomestic areas of 100 dwellings were visited and triatormines were searched manually in 369 potential sites. A total of 1821 Triatoma longipennis (93.2%) or Triatoma barberi was captured. Both species frequently occurred in sympatry. The infestation index was 60% for T longipennis and 16% for T barberi. T longipennis occurred throughout the village. Colonization indices were high for T longipennis (93%) and T barberi (75%), suggesting that both species have adapted to peridomestic habitats. The bug population size was larger for T longipennis than for T barberi. Five very large colonies of T longipennis were recorded whereas only 1 or 2 bugs were observed in 38% of the positive sites, which suggests intense dispersal activity. Both species exhibited high infection prevalence with Trypanosoma cruzi (46%). Only T cruzi lineage I was detected. Human seroprevalence was 1.8%. This study serves as an entomological overview of peridomiciliar triatomine colonization in a Mexican village and highlights the current risk of Chagas disease transmission. (c) 2007 Elsevier B.V. All rights reserved.