Periurban Trypanosoma cruzi-infected Triatoma infestans, Arequipa, Peru.
Periurban Trypanosoma cruzi-infected Triatoma infestans, Arequipa, Peru.
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DOI：
10.3201/eid1209.051662
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发表时间：
2006-09
影响因子：
11.8
通讯作者：
Bern C
中科院分区：
文献类型：
--
作者：
Levy MZ;Bowman NM;Kawai V;Waller LA;Cornejo del Carpio JG;Cordova Benzaquen E;Gilman RH;Bern C
简单的干预措施可以促进病媒控制并预防恰加斯病的城郊传播。在秘鲁阿雷基帕，由致病锥蝽引起的恰加斯病媒介传播已成为一个城市问题。我们在阿雷基帕的一个城郊社区进行了昆虫学调查，以确定锥蝽感染的危险因素和媒介种群密度的决定因素。在调查的 374 户家庭中，有 194 户（52%）收集了锥蝽，72 户（19.3%）收集了携带克氏锥虫的锥蝽。与其他动物围栏相比，豚鼠围栏更容易受到感染，并且拥有 2.38 倍的锥蝽。堆叠的砖块和土坯围墙更有可能有锥蝽，而金属丝网围墙则受到保护，免受侵扰。在人类住宅中，只有完全粉刷的房间才能免受感染。从空间上看，拥有锥蝽的家庭较为分散，而感染克氏锥蝽的家庭则较为聚集。将小动物关在金属丝网笼中有助于在人口稠密的城市环境中控制马铃薯晚疫病菌。
Simple interventions may facilitate vector control and prevent periurban transmission of Chagas disease. In Arequipa, Peru, vectorborne transmission of Chagas disease by Triatoma infestans has become an urban problem. We conducted an entomologic survey in a periurban community of Arequipa to identify risk factors for triatomine infestation and determinants of vector population densities. Of 374 households surveyed, triatomines were collected from 194 (52%), and Trypanosoma cruzi–carrying triatomines were collected from 72 (19.3%). Guinea pig pens were more likely than other animal enclosures to be infested and harbored 2.38× as many triatomines. Stacked brick and adobe enclosures were more likely to have triatomines, while wire mesh enclosures were protected against infestation. In human dwellings, only fully stuccoed rooms were protected against infestation. Spatially, households with triatomines were scattered, while households with T. cruzi–infected triatomines were clustered. Keeping small animals in wire mesh cages could facilitate control of T. infestans in this densely populated urban environment.