Soroprevalência e alterações hematológicas associadas com Ehrlichia canis em cães encaminhados a um hospital veterinário-escola no centro-oeste do Brasil
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2022
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Ticks are significant parasites of dogs in the tropics, where tick-borne pathogens are highly prevalent, especially in areas where tick control measures are frequently neglected. This study investigated the seroprevalence and hematological abnormalities associated with Ehrlichia canis in dogs referred to a veterinary teaching hospital in Central-western Brazil. Out of 264 dogs tested for anti-Ehrlichia canis antibodies by an indirect immunofluorescence assay (IFA), 59.1% (156/264) were positive. Seropositivity was significantly associated to anemia and thrombocytopenia, alone or in combination, and to leukopenia. Conversely, there were no differences in terms of seroprevalence according to sex, breed and age. This study demonstrated that dogs referred to a veterinary teaching hospital in Central-western Brazil are highly exposed to E. canis and that seropositive dogs are more likely to present hematological abnormalities, particularly anemia, thrombocytopenia and leukopenia. To our knowledge, this is the first study on detection of anti-E. canis antibodies by means of IFA among dogs in the state of Goiás. These findings highlighted the need for increasing awareness among dog owners regarding tick control measures in Central-western Brazil, ultimately to reduce the risk of exposure to E. canis and other tick-borne pathogens.
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Ehrlichiosis, Epidemiology, Indirect immunofluorescence assay, Tick-borne diseases, Clinical pathology, Goiás state, Erliquiose, Epidemiologia, Reação de imunofluorescência indireta, Doença transmitida por carrapato, Patologia clínica, Estado de Goiás
Citação
PAULA, Warley Vieira de Freitas et al. Seroprevalence and hematological abnormalities associated with Ehrlichia canis in dogs referred to a veterinary teaching hospital in central-western Brazil. Ciência Rural, Santa Maria, v. 52, n. 2, e20201131, 2022. DOI: 10.1590/0103-8478cr20201131. Disponível em: https://www.scielo.br/j/cr/a/RDp9NWjMRRXdwCNLxNngdLP/?lang=en. Acesso em: 23 abr. 2025.