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THE ROLE PLAYED BY SYMPATRIC COLLARED PECCARY (TAYASSU TAJACU), WHITE-LIPPED PECCARY (TAYASSU PECARI), AND FERAL PIG (SUS SCROFA) AS MAINTENANCE HOSTS FOR TRYPANOSOMA EVANSI AND TRYPANOSOMA CRUZI IN A SYLVATIC AREA OF BRAZIL
Tayassu pecari
Sus scrofa
Trypanosoma evansi
Trypanosoma cruzi
Áreas silvestres
Brasil
Pantanal
Tayassu pecari
Sus scrofa
Trypanosoma evansi
Trypanosoma cruzi
Sylvatic area
Brazil
Pantanal
Author
Affilliation
Fundação Oswaldo Cruz. Instituto Oswaldo Cruz. Rio de Janeiro, RJ, Brasil / Embrapa Pantanal. Corumbá, MS, Brasil.
Embrapa Pantanal. Corumbá, MS, Brasil.
Universidade para o Desenvolvimento do Estado e da Região do Pantanal. Campo Grande, MS, Brasil / Fundação Manoel Barros. Campo Grande, MS, Brasil.
Fundação Oswaldo Cruz. Instituto Oswaldo Cruz. Rio de Janeiro, RJ, Brasil.
Fundação Oswaldo Cruz. Instituto Oswaldo Cruz. Rio de Janeiro, RJ, Brasil.
Embrapa Pantanal. Corumbá, MS, Brasil.
Universidade para o Desenvolvimento do Estado e da Região do Pantanal. Campo Grande, MS, Brasil / Fundação Manoel Barros. Campo Grande, MS, Brasil.
Fundação Oswaldo Cruz. Instituto Oswaldo Cruz. Rio de Janeiro, RJ, Brasil.
Fundação Oswaldo Cruz. Instituto Oswaldo Cruz. Rio de Janeiro, RJ, Brasil.
Abstract
The Brazilian Pantanal has been considered one of the richest and most diverse wetland ecosystems in the world. It is occupied by cattle ranching, and a variety of wildlife species share the same habitats with domestic livestock. We investigated infections of Trypanosoma evansi and Trypanosoma cruzi in the sympatric suiformes-collared peccary (Tayassu tajacu), white-lipped peccary (Tayassu pecari), and feral pig (Sus scrofa) by parasitological, serological, and molecular tests. Additionally, we evaluated the health status of both positive and negative suiformes by hematological and biochemical parameters. The results show that peccaries and feral pigs play an important role on the maintenance of both T. evansi and T. cruzi in the Brazilian Pantanal. Health impairment was observed only in the white-lipped peccary infected with T. evansi. Despite presenting low T. evansi parasitemia, all infected white-lipped peccaries displayed low hematocrit values and marked leucopenia. The hematological values showed that the T. evansi infection is more severe in young white-lipped peccaries. The presented data show that feral pigs and peccaries are immersed in the transmission net of both trypanosome species, T. cruzi and T. evansi, in the Pantanal region.
Keywords in Portuguese
Tayassu tajacuTayassu pecari
Sus scrofa
Trypanosoma evansi
Trypanosoma cruzi
Áreas silvestres
Brasil
Pantanal
Keywords
Tayassu tajacuTayassu pecari
Sus scrofa
Trypanosoma evansi
Trypanosoma cruzi
Sylvatic area
Brazil
Pantanal
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