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Arquivo Brasileiro de Medicina Veterinária e Zootecnia

versão On-line ISSN 1678-4162


BICALHO, K.A.; PASSOS, L.M.F  e  RIBEIRO, M.F.B. Dog experimental infection of Babesia canis isolated in Minas Gerais State. Arq. Bras. Med. Vet. Zootec. [online]. 2002, vol.54, n.5, pp.546-548. ISSN 1678-4162.

The objective of the present study was to evaluate parasitemia and packed cell volume patterns of dogs experimentally inoculated with two isolates of Babesia canis: one from Belo Horizonte (BH) and the other from Lavras (Lv), Minas Gerais State, Brazil. Both isolates showed similar patterns, with the peak of parasitemia occurring three days post-infection. From the fourth day, parasitemia was detected in low levels (0.01%) with small periodical increases. The packed cell volume decreased after the parasitemia beginning, with oscillations during the experimental period. All dogs remained apparently normal, except one, which had been inoculated with the BH isolate and presented classical clinical signs of babesiosis (weakness, anemia, hemoglobinuria and depression). The results suggest that the studied isolates have low pathogenicity, and point to the need for further studies aiming to characterize the subspecies of Brazilian isolates.

Palavras-chave : Dog; Babesia canis; experimental infection.

        · texto em Português


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