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Health Surveillance and Disease Management / Communicable Diseases / Chagas

XVth Meeting of the Southern Cone Intergovernmental Commision to Eliminate Triatoma infestans and Interrupt the Transmission of Transfusional Trypanosomiasis (INCOSUR-Chagas)

(Brasília, Brazil, 6–9 June 2006)

T. infestans

Conclusions, Recommendations & Decisions
(in Spanish, 5 pp, PDF, 674 Kb)

About INCOSUR-Chagas

Other Subregional Initiatives
- AMCHA (Amazon)
- IPCA (Central America)
- IPA (Andes)

PAHO Chagas Page

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This Fifteenth Annual INCOSUR-Chagas Meeting examined the progress made and challenges yet to be resolved by the six countries that make up the Initiative (Argentina, Bolivia, Brazil, Chile, Paraguay, and Uruguay). The Intergovernmental Commission arrived at a series of 32 key recommendations and conclusions and 5 decisions.

Chagas disease is a serious problem in neglected rural areas and among neglected population, one that causes morbidity and mortality for millions of Latin American and produces an important disease burden in the 21 endemic countries. In the Southern Cone, the technical cooperation among countries (TCC) taking place within the framework of the various PAHO subregional initiatives has brought about the interruption of vector-borne transmission of Trypanosoma cruzi by Triatoma infestans in an area of 6,900,000 square kilometers where the disease had been endemic, freeing from incidence of infection an area inhabited by approximately 126 million people. In case of Brazil, we are talking about 4,200,000 square kilometers (Rio Grande do Sul, Bahia, Tocantins, Paraná, São Paulo, Mato Grosso, Mato Grosso do Sul, Pernambuco, Minas Gerais, Piauí, Paraíba, the Federal District, and Rio de Janeiro state), inhabited by approximately 91 million people.

By 2006, Brazil had managed to validate interruption of vector-borne transmission of Trypanosoma cruzi by Triatoma infestans in its last Chagas-endemic state with potential for transmission: Bahia. With this recent achievement, the total of 13 endemic Brazilian states where T. infestans was the principal vector now no longer have active vector-borne transmission. Before having reached the 100th anniversary of the inspired discovery by Brazilian researcher Carlos Chagas (in 1909), the country reached its goal of totally interrupting transmission by the main vector.

Since the beginning of the Initiative, its member countries have been making great efforts to achieve their goal of interrupting vector-borne and transfusional transmission of Chagas disease. As a result, Uruguay and Chile have both certified the interruption of transmission throughout their territory, joined this year by Brazil. Other countries—such as Argentina, Paraguay and Bolivia—have achieved the interruption of transmission in several of their provinces/departments. Currently, the areas in the Region that where transmission still persists share similar characteristics among themselves that are different from those of the countries that have already become certified. This area, the Greater Chaco, presents characteristic eco-epidemiological environments that reduce the impact of control measures with the probability of re-infestation. This situation, produced in part by the development of vector resistance to pyrethroid-type insecticides throughout part of this area and in part by operational difficulties faced by the countries-basically regarding entomological surveillance in an extended area with remote access and a very low population density, merits special considerations from the Intergovernmental Commission, which takes a regional perspective extending beyond those areas currently facing political and administrative limitations.