Electrocardiographic findings in Mexican chagasic subjects living in high and low endemic regions of Trypanosoma cruzi infection

Blood transfusion and iatrogenic risks in Mexico city: anti-Trypanosoma cruzi seroprevalence in 43,048 blood donors, evaluation of parasitemia, and electrocardiogram findings in seropositive

“…Seroepidemiological surveys carried out in subjects living in high and low endemic regions for T. cruzi infection in Mexico have showed that electrocardiographic alteration is present in 18 up to 22% of seropositive subjects (Rangel-Flores et al 2001, Sosa-Jurado et al 2003. In this work we found that 5 out of the 29 seropositive volunteer (17%) blood donors were subclinic subjects presenting ECG alterations compatible with Chagas disease.…”

Performance levels of four Latin American laboratories for the serodiagnosis of Chagas disease in Mexican sera samples

“…Nevertheless, some variation of ELISA absorbance values in serum samples from different countries has been observed (Umezawa et al 1999). Furthermore, higher titers of anti T. cruzi antibodies have been detected in individuals residing in high endemic regions for T. cruzi infection when compared against infected individuals living in low endemic areas (Borges-Pereira & Coura 1986, Sosa-Jurado et al 2003. The same observations hold true for those symptomatic with chronic chagasic cardiopathy when compared against those who are asymptomatic for chronic chagasic cardiopathy (Nava et al 2001).…”

Active transmission of human chagas disease in Colima Mexico

“…In accordance with the WHO classification of endemic countries, Mexico is placed in group 2, which refers to those countries that do not have formal control programs in spite of the presence of AT transmission (Moncayo 2003). This is fundamentally due to the fact that AT is not considered to be a public health problem and the epidemiological studies realized in the region appear to be incomplete (Sosa et al 2003).…”