High prevalence anti-Trypanosoma cruzi antibodies, among blood donors in the State of Puebla, a non-endemic area of Mexico
Mem. Inst. Oswaldo Cruz
;
97(7): 947-952, Oct. 2002. mapas, tab
Artigo
em Inglês
| LILACS
| ID: lil-325911
ABSTRACT
Blood transfusion is the second most common transmission route of Chagas disease in many Latin American countries. In Mexico, the prevalence of Chagas disease and impact of transfusion of Trypanosoma cruzi-contaminated blood is not clear. We determined the seropositivity to T. cruzi in a representative random sample, of 2,140 blood donors (1,423 men and 647 women, aged 19-65 years), from a non-endemic state of almost 5 millions of inhabitants by the indirect hemagglutination (IHA) and enzyme linked immunosorbent assay (ELISA) tests using one autochthonous antigen from T. cruzi parasites, which were genetically characterized like TBAR/ME/1997/RyC-V1 (T. cruzi I) isolated from a Triatoma barberi specimen collected in the same locality. The seropositivity was up to 8.5 percent and 9 percent with IHA and ELISA tests, respectively, and up to 7.7 percent using both tests in common. We found high seroprevalence in a non-endemic area of Mexico, comparable to endemic countries where the disease occurs, e.g. Brazil (0.7 percent), Bolivia (13.7 percent) and Argentina (3.5 percent). The highest values observed in samples from urban areas, associated to continuous rural emigration and the absence of control in blood donors, suggest unsuspected high risk of transmission of T. cruzi, higher than those reported for infections by blood e.g. hepatitis (0.1 percent) and AIDS (0.1 percent) in the same region
Texto completo:
DisponíveL
Índice:
LILACS (Américas)
Assunto principal:
Trypanosoma cruzi
/
Doadores de Sangue
/
Doença de Chagas
Tipo de estudo:
Estudo de prevalência
/
Fatores de risco
Limite:
Animais
/
Humanos
País/Região como assunto:
México
Idioma:
Inglês
Revista:
Mem. Inst. Oswaldo Cruz
Assunto da revista:
Medicina Tropical
/
Parasitologia
Ano de publicação:
2002
Tipo de documento:
Artigo
/
Documento de projeto
País de afiliação:
França
/
México
Instituição/País de afiliação:
Benemérita Universidad Autónoma de Puebla/MX
/
IMSS/MX
/
Institute de Recherche pour le Devélopement/FR
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