Pathogenesis of Trypanosoma evansi infection in dogs and horses: hematological and clinical aspects

Ciência Rural

Roberto Aguilar Machado Santos Silva²  Heitor Miragaia Herrera²  Luzimari Borges Da Silveira Domingos¹  Flora Auxiliadora Ximenes¹  Alberto Martin Rivera Dávila¹ 

[1] ,Empresa Brasileira de Pesquisa Agropecuária Centro de Pesquisa Agropecuária do Pantanal Laboratory of Animal HealthCorumbá MS ,Brazil

关键词: trypanosomosis;    Trypanosoma evansi;    pathogenesis;    erythrocyte pathologic changes;    dog;    horse;    tripanosomose;    Trypanosoma evansi;    patogênese;    alterações dos eritrócitos;    cão;    cavalo;   

DOI  :  10.1590/S0103-84781995000200010

来源: SciELO

【 摘 要 】

Trypanosoma evansi caused severe anemia in horses and pronounced leukopenia in dogs, both naturally infected. The horses presented microcytic normochromic anemia and the dogs showed microcytic hypochromic anemia. The clinical signs observed were fever, anemia, edema of the legs and lower parts, weakness and inappetence. Light microscopic studies demonstrated that Trypanosoma evansi produced several alterations in erythrocytes of dogs and horses. These pathologic changes included vacuolation, acanthocytes, dacrocytes, codocytes, microspherocytes and bizarre shapes. Mature erythrocyte were observed adhered to trypanosomes. Erythrophagocytosis was also demonstred.

【 授权许可】

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