Ecological Niche Modeling as a Tool for Understanding Distributions and Interactions of Vectors, Hosts, and Etiologic Agents of Chagas Disease

Conference paper
Part of the Advances in Experimental Medicine and Biology book series (AEMB, volume 710)


Chagas disease, or American Trypanosomiasis, is a tropical parasitic disease caused by the flagellate protozoan Trypanosoma cruzi, which is in turn transmitted by blood-sucking insects of the subfamily Triatominae (family Reduviidae). Because no drugs or vaccines are available to cure Chagas disease in its chronic phase, vectorial control (i.e., insecticide spraying) constitutes the principal means by which to impair Chagas disease transmission. Environmental and social factors have caused changes in the epidemiology of this disease—it was originally restricted to Latin America, but is now becoming a global heath concern in non-endemic areas as a consequence of human migrations. In Brazil, despite the fact that the most effective vector has been controlled, other triatomine species infest and colonize domiciliary habitats and can transmit the pathogen. As a consequence, Chagas disease transmission continues: the prevalence of the disease remains at ∼12 million people, with ∼200,000 new cases per year in 15 countries of Latin America, making control actions still necessary. Understanding the environmental requirements and geographic distributions of vectors is key to guiding control measures, and understanding better epidemiologic aspects of the disease. Ecologic niche modeling is a relatively new tool that permits such insights—as a consequence, here, we present an overview of insights gained using this approach in understanding of Chagas disease.


Niche Modeling Marburg Virus American Trypanosomiasis Potential Distributional Area Triatomine Species 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.



Vanessa Lima Neiva for editing the references and Heloisa Diniz, Serviço de Produção e Tratamento de Imagens do Instituto Owaldo Cruz, for editing the figures and assistance in the preparation of the plates. CNPq for support.


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© Springer Science+Business Media, LLC 2012

Authors and Affiliations

  1. 1.Laboratório de Biodiversidade Entomológica, Instituto Oswaldo CruzFiocruzBrazil
  2. 2.Biodiversity InstituteUniversity of KansasLawrenceUSA

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