Seroprevalence of human Trypanosoma cruzi infection in diferent geografic zones of Chiapas, Mexico.
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.
Mazariego-Arana
M A
MA
Facultad de Ciencias Quimicas, UNACH, México.
Monteón
V M
VM
Ballinas-Verdugo
M A
MA
Hernández-Becerril
N
N
Alejandre-Aguilar
R
R
Reyes
P A
PA
D000293:Adolescent; D000328:Adult; D000818:Animals; D000913:Antibodies, Protozoan / Q000097:blood*; D014355:Chagas Disease / Q000097:blood* / Q000453:epidemiology*; D002648:Child; D002675:Child, Preschool; D005260:Female; D006801:Humans; D007223:Infant; D008297:Male; D008800:Mexico / Q000453:epidemiology; D008875:Middle Aged; D016036:Seroepidemiologic Studies; D014349:Trypanosoma cruzi / Q000276:immunology*
D000913:Antibodies, Protozoan