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Year 2017 - Volume 37, Number 2
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Molecular epidemiology of Anaplasma platys, Ehrlichia canis and Babesia vogeli in stray dogs in Paraná, Brazil, 37(2):129-136
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ABSTRACT.- Ribeiro C.M., Matos A.C., Azzolini T., Bones E.R., Wasnieski E.A., Richini-Pereira V.B., Lucheis S.B. & Vidotto O. 2017. Molecular epidemiology of Anaplasma platys, Ehrlichia canis and Babesia vogeli in stray dogs in Paraná, Brazil. Pesquisa Veterinária Brasileira 37(2):129-136. Faculdade Educacional de Dois Vizinhos, União de Ensino do Sudoeste do Paraná, Av. Presidente Kennedy 2601, Dois Vizinhos, PR 85660-000, Brazil. E-mail: clau.mribeiro@hotmail.com
Hemoparasitic infections are tick-borne diseases, which affect animals and humans. Considering the importance of canine hemoparasitic infections in veterinary clinics, this study aimed to determine the occurrence of Anaplasma platys, Ehrlichia canis and Babesia vogeli in blood samples from 182 dogs not domiciled in the city of Pato Branco, southwestern region of Paraná State, Brazil, using polymerase chain reaction (PCR). The prevalence of A. platys and B. vogeli was 32.9% and 10.9% respectively, and A. platys infection prevailed (p<0.001). The number of dogs positive for A. platys was larger in Winter (p<0.05). All blood samples were negative for E. canis. In the dogs, infestation by Amblyomma cajennense predominated over that by Rhipicephalus sanguineus (p<0.001); but there was no significant association between PCR and the variables presence of ticks, sex and age. Dogs infected by A. platys and B. vogeli showed thrombocytopenia, lymphopenia and leukocytosis; but there was no correlation between such hematological changes and infection by hemoparasites. This appears to be the first molecular study that demonstrates the existence of A. platys and B. vogeli in dogs from the southwestern region of Paraná. |
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