Seroprevalence of human Trypanosoma cruzi infection in diferent geografic zones of Chiapas, Mexico.

M. A. Mazariego-Arana, V. M. Monteón, M. A. Ballinas-Verdugo, N. Hernández-Becerril, R. Alejandre-Aguilar, P. A. Reyes

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Abstract

A serologic survey was carried out in four different geographic zones of Chiapas, Mexico. A total of 1,333 samples were collected from residents of thirteen communities located on the Coast, Central Mountain, Lacandon Forest and a zone called Mesochiapas. One hundred and fifty one seropositive individuals (11.3%) were identified. Human Trypanosoma cruzi infection was influenced by geography. In the Lacandon Forest and Central Mountains there was a higher seroprevalence 32.1 and 13.8% respectively, than on the coast (1.2%). In Mesochiapas there were no seropositive individuals among the 137 persons tested. An active transmission is probably continuing because seropositive cases (13.8%) were detected in children under 10 years of age. The vector recognized on the Coast was Triatoma dimidiata while in the Lacandon Forest it was Rhodnius prolixus.
Original languageAmerican English
Pages (from-to)453-458
Number of pages6
JournalRevista da Sociedade Brasileira de Medicina Tropical
DOIs
StatePublished - 1 Jan 2001
Externally publishedYes

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