Hidden sylvatic foci of the main vector of Chagas disease Triatoma infestans : threats to the vector elimination campaign?
2011
Ceballos, Leonardo A. | Piccinali, Romina V. | Marcet, Paula L. | Vazquez-Prokopec, Gonzalo M. | Cardinal, M. Victoria
The research investigates relatedness between sylvatic and domestic or peri domestic (D/PD) populations of T. infestans (transmitters of Chagas disease) and the threat that they may represent to vector control and elimination attempts in the Argentinean Chaco. The report establishes that the domestication process of T. infestans does not prevent the species from surviving at low density in a wide diversity of sylvatic or semi-sylvatic habitats, even after community-wide insecticide spraying. Results suggest that in areas with recurrent re-infestation, vector control programs should consider the potential occurrence of external sources (semi-sylvatic or sylvatic) around the target community.
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