Molecular survey for the presence of tick-borne haemoparasites in dogs and ticks from the Atlantic Forest environment, Rio de Janeiro state, Brazil

Maria Regina Ferreira, Aline Moreira de Souza, Sabrina Destri Emmerick Campos, Nathalie Costa da Cunha, Beatriz Teixeira Gomes da Silva, Nathalia Xavier da Silva, Nádia Regina Pereira Almosny

Abstract


Tick-borne diseases have a significant worldwide impact in the veterinary and medical fields. The Serra da Tiririca State Park (PESET) is an Atlantic forest reserve that is home to a wide variety of wild animal species, but is suffering from unauthorised human activities, such as unregulated construction, such as private dwellings and the introduction of domestic pets. The objective of this study is to determine the prevalence of piroplasms and Hepatozoon spp. in dogs and ticks in the Atlantic Forest reserve. Blood samples were taken from 124 asymptomatic canines and 88 Rhipicephalus sanguineus ticks collected from animals inhabiting the PESET. Molecular techniques targeting fragments of the 18s rRNA gene from piroplasms and Hepatozoon spp. were applied to all samples obtained, and one blood sample (0.81%) positive for Babesia vogeli was discovered. All dogs tested negative to Hepatozoon spp. and no tick sample showed positive results for either PCR assay. Despite the low frequency of B. vogeli infection found in dogs that inhabit the PESET, parasitized dogs could be a source of transmission for new vectors, other dogs and even wild canines that are part of the native fauna of the park.

Keywords


Babesia vogeli; Rhipicephalus sanguineus; Rainforest biome; Polymerase chain reaction.

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References


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DOI: http://dx.doi.org/10.5433/1679-0359.2020v41n2p689

Semina: Ciênc. Agrár.
Londrina - PR
E-ISSN 1679-0359
DOI: 10.5433/1679-0359
E-mail: semina.agrarias@uel.br
Este obra está licenciado com uma Licença Creative Commons Atribuição-NãoComercial 4.0 Internacional