Volume 68, Issue 6
  • ISSN: 0002-9637
  • E-ISSN: 1476-1645


Severe chronic damage to the heart and gastrointestinal tract in patients with Chagas’ disease are often observed 10–20 years after the acute phase. The course of long-lasting infection with the Colombian strain of was studied in seven rhesus monkeys infected for 15–19 years. Subpatent parasitemia was detected in all studied animals, using hemoculture (two of seven), artificial xenodiagnosis (three of seven), and a polymerase chain reaction PCR (six of six). High titers of specific IgG antibody to persisted throughout the chronic phase of infection. Abnormal electrocardiographic (three of six) and echocardiographic (one of six) patterns detected in the -infected monkeys were possibly related to parasite-triggered myocardial damage. The results suggest that rhesus monkeys experimentally infected with , besides reproducing the acute phase of Chagas’ disease, also develop chronic chagasic cardiomyopathy.


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  • Received : 07 Aug 2002
  • Accepted : 05 Feb 2003

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