Trypanosoma cruzi TcI and TcII transmission among wild carnivores, small mammals and dogs in a conservation unit and surrounding areas, Brazil.
作者： FABIANA LOPES ROCHA , ANDRÉ LUIZ RODRIGUES ROQUE , RICARDO CORASSA ARRAIS , JEAN PIERRE SANTOS , VALDIRENE DOS SANTOS LIMA
DOI: 10.1017/S0031182012001539
关键词:
摘要: Aiming to better understand the ecological aspects of Trypanosoma cruzi transmission cycles, wild carnivores, small mammals and dogs were examined for T. infection in Serra da Canastra National Park region, Brazil. Isolates genotyped using mini-exon gene PCR-RFLP (1f8 H3) genomic targets. was well established area occurred both peridomestic environments. Dog seroprevalence 29·4% (63/214) TcI TcII genotypes, besides mixed infections observed. Only detected mammals. Marsupials displayed lower relative abundance, but a high prevalence positive haemocultures (4/22), whereas rodents (9/113) mainly abundant Akodon montensis Cerradomys subflavus species. The felid Leopardus pardalis only carnivore display haemoculture captured same region where mammal high. Two canid species, Chrysocyon brachyurus Cerdocyon thous, serologically (4/8 8/39, respectively), probably related their capacity exploit different niches. Herein, dog not signals also genotypes present. Distinct strategies are discussed.
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