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.

[1]  M. T. Cosme,et al.  Riesgo de transmisión de Trypanosoma cruzi por transfusión de sangre en México , 1998 .

[2]  J. L. Rosales-Encína,et al.  Humoral nitric oxide levels and antibody immune response of symptomatic and indeterminate Chagas' disease patients to commercial and autochthonous Trypanosoma cruzi antigen. , 1998, The American journal of tropical medicine and hygiene.

[3]  C. Garcia,et al.  Chronic chagasic cardiopathy with parasitemic state (preliminary report). , 1996 .

[4]  P. Reyes,et al.  Diagnóstico serológico de la enfermedad de chagas : autosuficiencia y concordancia interlaboratorios , 1995 .

[5]  Víctor M Monteón-Padilla,et al.  Detección de anticuerpos contra trypanosoma cruzi en donadores de sangre , 1993 .

[6]  P. Reyes-López,et al.  [Detection of antibodies against Trypanosoma cruzi in blood donors]. , 1993, Salud publica de Mexico.

[7]  G. Gutiérrez,et al.  Seroepidemiología de la enfermedad de Chagas en México , 1992 .

[8]  J. Rojas,et al.  Sylvatic focus of Chagas' disease in Oaxaca, Mexico. , 1989, Annals of tropical medicine and parasitology.

[9]  I. Arteaga,et al.  Chagas disease in Mexico , 1988 .

[10]  C. Guzmán-Bracho,et al.  [Importance of Chagas disease in Mexico]. , 1986, Revista latinoamericana de microbiologia.

[11]  O. Velasco-Castrejón,et al.  Importancia de la enfermedad de Chagas en Mexico , 1986 .

[12]  R. Goldsmith,et al.  Seroepidemiologic surveys for Chagas' disease in Chiapas, Mexico. , 1983, Archivos de investigacion medica.

[13]  J. Tay-zavala.  La enfermedad de chagas en la republica mexicana , 1980 .

[14]  J. Tay.  Chagas' disease in Mexico. , 1980 .

[15]  H. Lent,et al.  Revision of the Triatominae (Hemiptera, Reduviidae), and their significance as vectors of Chagas' disease. , 1979 .