1921
Volume 76, Issue 2
  • ISSN: 0002-9637
  • E-ISSN: 1476-1645

Abstract

New zones with risk of infection for Chagas disease were reported in San Antonio Tezoquipan, Caltimacan, and El Ahorcado in the Hidalgo State of Mexico. Antibodies to were detected by enzyme-linked immunosorbent assay and indirect hemagglutination assay in human serum samples. Study subjects were also given an electrocardiogram. was isolated from triatomines collected and its virulence was determined in BALB/c mice. Seropositive persons were found in the three regions studied and seroprevalence of ranged between 3.25% and 5.13%. Six of eight seropositive persons had cardiac alterations. The species of triatomines detected were , and and at least one of each species was infected with Entomologic indexes from the zones were determined, and El Ahorcado showed the greatest risk of infection. In this region, we found more virulent isolates of in , and the highest human seroprevalence for .

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2007-02-01
2017-09-23
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  • Received : 31 Oct 2005
  • Accepted : 24 Oct 2006

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