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      Emerging Chagas disease in Amazonian Brazil.

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          Abstract

          In the Amazon Basin, Trypanosoma cruzi infection is enzootic, involving a variety of wild mammals and at least 10 of the 16 reported silvatic triatomine bug species. Human cases of Chagas disease are increasing, indicating that the disease may be emerging as a wider public health problem in the region: 38 cases from 1969 to 1992, and 167 in the past eight years. This article reviews the status of Chagas disease in Amazonian Brazil, including known reservoirs and vectors, and the genetic diversity of T. cruzi. At least three subspecific groups of T. cruzi-T. cruzilZ1, T. cruziZ3 and T. cruziZ3/Z1 ASAT--are present. It appears that T. cruzil has an extant capacity for genetic exchange. Attention is also drawn to the risk of domestic endemicity, in addition to the tasks facing the disease control authorities.

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          Author and article information

          Journal
          Trends Parasitol
          Trends in parasitology
          Elsevier BV
          1471-4922
          1471-4922
          Apr 2002
          : 18
          : 4
          Affiliations
          [1 ] Dept of Tropical Medicine, Instituto Oswaldo Cruz, Fiocruz, Rio de Janeiro, Brazil. coura@ioc.fiocruz.br
          Article
          S1471492201022000
          10.1016/s1471-4922(01)02200-0
          11998705
          4d708db8-98ec-4192-a02d-0da88834244e
          History

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