[The prevalence of Trypanosoma cruzi infection in blood donors in the state of Jalisco, Mexico].

A Chagas disease serological study was done from October 1991 to March 1992 and 3419 samples were taken from people who donated blood at 12 county areas of Jalisco, México and 8 urban hospitals, by means of indirect hemagglutination reaction. The results indicate that: 73.5% of the donors were from urban area, 26.5% were from rural areas; 1.28% of the donors (N = 44) were considered infected. Thirty nine of them (1.14) were males and 5 females. According to the above mentioned data, we can confirm that the risk of transmission of Trypanosoma cruzi can occur by blood transfusion and this is potentially latent because of the growing urbanization of Chagas disease.