玻利维亚拉巴斯山谷中广泛分布的野栖种群 Triatoma infestans（Reduviidae, Triatominae）的首次报告。
First report of widespread wild populations of Triatoma infestans (Reduviidae, Triatominae) in the valleys of La Paz, Bolivia.
机构信息
Département Société et Santé, Institut de Recherche pour le Développement (IRD), Montpellier, France.
出版信息
Am J Trop Med Hyg. 2010 Apr;82(4):574-9. doi: 10.4269/ajtmh.2010.09-0325.
Abstract
Wild populations of Triatoma infestans, the main vector of Chagas disease in the Southern Cone countries, may be involved in reinfestation of human dwellings, limiting the success of vector-control campaigns in Bolivia. Knowledge of the distribution of these populations remains incomplete. We report here the detection of T. infestans wild populations in large areas in the department of La Paz, Bolivia. Among 18 sylvatic areas investigated, 17 were positive with T. infestans specimens. The infection rate of captured T. infestans with Trypanosoma cruzi was 85.7% in adult specimens. These results expand the geographical distribution of wild populations of T. infestans; it may be distributed throughout the Inter-Andean Dry Forest eco-region of Bolivia. The current information allows us to propose the hypothesis that a sylvatic origin of the reinfestation is located in the valleys of La Paz.
摘要
在南锥体国家，野生的 Triatoma infestans 种群可能参与了人类住所的重新感染，从而限制了玻利维亚病媒控制运动的成功。这些种群的分布情况仍不完全清楚。我们在此报告在玻利维亚拉巴斯省的大片地区检测到野生的 T. infestans 种群。在所调查的 18 个森林地区中，有 17 个地区存在携带 Trypanosoma cruzi 的 T. infestans 标本。捕获的 T. infestans 成虫感染率为 85.7%。这些结果扩大了野生 T. infestans 种群的地理分布范围；它可能分布在玻利维亚安第斯山脉干旱森林生态区的整个地区。目前的信息使我们能够提出假设，即重新感染的森林起源位于拉巴斯的山谷中。
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Detection of sylvatic dark morphs of Triatoma infestans in the Bolivian Chaco.在玻利维亚查科地区检测到侵袭锥蝽的野生深色形态。
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