1921
Volume 91, Issue 6
  • ISSN: 0002-9637
  • E-ISSN: 1476-1645

Abstract

Abstract.

The Sierra Nevada de Santa Marta (SNSM) is a mountainous area in Colombia that is highly endemic to Chagas disease. We explored some eco-epidemiological attributes involved in the Chagas disease transmission scenario in three Indigenous communities. An epidemiological survey was done, where parasite infection in reservoirs and insects, genotyping, identification of blood-meal sources in intradomiciliary insects using the high-resolution melting technique, and some risk factors were evaluated. The results suggest that several dwelling conditions such as thatched palm roofs and mud walls carried the highest risk of finding intradomiciliary , which 56.41% were infected with and fed with human blood. Moreover, Ia was the most frequent haplotype found in insects. These results indicate the existence of a domestic transmission cycle that does not overlap with the sylvatic cycle, and highlight the need for efficient entomological control focused to this area.

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  • Received : 21 Feb 2014
  • Accepted : 23 Aug 2014
  • Published online : 03 Dec 2014

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