Dumonteil E, Gourbière S

Language: Spanish
References: 39
Page: 221-231
PDF size: 180.98 Kb.

ABSTRACT

Chagas disease is a major public health problem in Latin America, caused by the protozoan parasite Trypanosoma cruzi and transmitted by hematophagous insects from the Triatominae subfamily. Control is based on domestic vector control with insecticides and housing improvement. As with other vector-borne diseases, the identification of areas of high risk of disease transmission is a major prerequisite for the planning and implementation of cost-effective control programs. In this study, we explored the relationship between the geographic distribution of Triatoma dimidiata and bioclimatic factors in the Yucatan peninsula in Mexico, using geographic informational systems and developed predictive models of T. dimidiata domestic abundance and of its infection rates by T. cruzi. These predictions were then used to build the first natural transmission risk map for Chagas disease in the Yucatan peninsula, a tool that should prove very valuable for the implementation of effective vector control programs in the region.

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