Peer-reviewed veterinary case report
Tick-borne infections in dogs in coastal Ceara, Brazil
By Fonsêca, Arícia Débora Vasconcelos et al.·Published in Revista brasileira de parasitologia veterinaria = Brazilian journal of veterinary parasitology : Orgao Oficial do Colegio Brasileiro de Parasitologia Veterinaria·2022·Laborató·View original on PubMed →
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Original publication title: Occurrence of tick-borne pathogens in dogs in a coastal region of the state of Ceará, northeastern Brazil.
- Species:
- dog
Plain-English summary
In a coastal area of Brazil, blood samples from 153 dogs were tested for tick-borne diseases. About 60 of these dogs were found to be infected or exposed to pathogens like Babesia vogeli and Ehrlichia canis, with Babesia being the most common. Interestingly, younger dogs and stray dogs were more likely to test positive for certain infections. While some dogs showed signs of anemia and low white blood cell counts, there were no clear symptoms linked to the infections. The study highlights the importance of controlling ticks to protect dogs from these diseases.
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Abstract
The aim of this study was to determine the occurrence of tick-borne pathogens (Ehrlichia canis, Babesia vogeli, Hepatozoon spp. and Rickettsia spp.) in dogs in Vila de Jericoacoara, coastal region of Ceará, Brazil. Blood samples were collected from 153 animals and analyzed using molecular and serological methods. Sixty animals were found to be infected or exposed to at least one of the pathogens studied. Babesia vogeli was the most prevalent pathogen (15%), followed by E. canis (13.7%) and Hepatozoon spp. (11.8%), which was identified as Hepatozoon canis through sequencing. Twenty dogs (13%) were seroreactive to Rickettsia spp. Rhipicephalus sanguineus sensu lato was observed on 11.8% of the animals. There were associations between age (< 3 years old) and positivity for B. vogeli, and between habitation (stray dogs) and positivity for H. canis. There were also associations between anemia and infection with H. canis, and between leukopenia and exposure to Rickettsia spp. No association was detected between clinical alterations and infection with or exposure to the pathogens studied. The results confirmed that pathogens of veterinary importance are circulating in northeastern Brazil and showed that dogs are exposed to Rickettsia species with zoonotic potential, thus indicating a need for vector control measures.
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Search related cases →Original publication on PubMed: https://pubmed.ncbi.nlm.nih.gov/35239843/