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Ecologic niche modeling and potential reservoirs for Chagas disease, Mexico
Peterson, A. Townsend Sánchez-Cordero, VÃctor Beard, C. Ben Ramsey, Janine M.
Peterson, A. Townsend
Sánchez-Cordero, VÃctor
Beard, C. Ben
Ramsey, Janine M.
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Abstract
Ecologic niche modeling may improve our understanding of epidemiologically relevant vector and parasitereservoir
distributions. We used this tool to identify host relationships of Triatoma species implicated in
transmission of Chagas disease. Associations have been documented between the protracta complex (Triatoma:
Triatominae: Reduviidae) with packrat species (Neotoma spp.), providing an excellent case study
for the broader challenge of developing hypotheses of association. Species pairs that were identified coincided
exactly with those in previous studies, suggesting that local interactions between Triatoma and
Neotoma species and subspecies have implications at a geographic level. Nothing is known about sylvatic
associates of T. barberi, which are considered the primary Chagas vector in Mexico; its geographic distribution
coincided closely with that of N. mexicana, suggesting interaction. The presence of this species was
confirmed in two regions where it had been predicted but not previously collected. This approach may help
in identifying Chagas disease risk areas, planning vector-control strategies, and exploring parasite-reservoir
associations for other emerging diseases.
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Centers for Disease Control and Prevention
http://www.cdc.gov/ncidod/EID/vol8no7/01-0454.htm
Date
2002-07
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Centers for Disease Control and Prevention
Research Projects
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Citation
Peterson, A. T., V. Sánchez-Cordero, C. B. Beard, and J. M. Ramsey. 2002. Ecologic niche modeling and potential reservoirs for Chagas disease, Mexico. Emerging Infectious Diseases 8:662-667.