Bosseno Marie-France, Barnabé Christian, Sierra Maria Jesus Ramirez, Kengne Pierre, Guerrero Sergio, Lozano Felipe, Ezequiel Kasten, Gastélum Magallón, Brenière Simone Frédérique
Département Société et Santé, Unité de Recherche 016 and Unité de Recherche 165, Institut de Recherche pour le Développement, Montpellier, France.
Am J Trop Med Hyg. 2009 Jun;80(6):988-91.
The control of wild triatomine populations that can invade dwellings is a major challenge for Chagas disease control in Mexico, but a better knowledge of the biology of these populations is required to develop appropriate control methods. We describe a new terrestrial ecotope of Triatoma longipennis, a principal vector in the occidental part of Mexico, in addition to its previously identified niche in rock pile boundary walls. Analysis of feeding hosts in the two ecotopes showed that this species is able to diversify its food sources outside of the principal hosts, Dasypus novemcinctus and Procyon lotor, and to disperse in search of new meals. Moreover, T. longipennis are strongly infected not only by the Trypanosoma cruzi I lineage found in the domestic cycle, but also by T. cruzi lineage II. The impact of T. cruzi II on human infection remains to be determined.
控制能够侵入住宅的野生锥蝽种群是墨西哥恰加斯病防控面临的一项重大挑战，但要开发出合适的控制方法，需要对这些种群的生物学特性有更深入的了解。我们描述了长红锥蝽的一个新的陆地生态位，它是墨西哥西部地区的主要传播媒介，此外还介绍了其先前在石堆边界墙中确定的生态位。对这两个生态位中取食宿主的分析表明，该物种能够在主要宿主九带犰狳和浣熊之外实现食物来源多样化，并分散寻找新的食物。此外，长红锥蝽不仅受到家庭传播周期中发现的克氏锥虫I型谱系的严重感染，还受到克氏锥虫II型谱系的感染。克氏锥虫II型对人类感染的影响仍有待确定。
