Publications by authors named "Mariana Granziera Spolidorio"

This work involved a serological investigation of tick-borne pathogens in opossums in eight municipalities of the state of São Paulo, Brazil. Serum samples from 109 opossums (91 Didelphis aurita and 18 Didelphis albiventris) were tested to detect antibodies to Rickettsia rickettsii (Taiaçu strain, 1:64 cut-off) and Ehrlichia canis (São Paulo strain, 1:40 cut-off), by indirect immunofluorescence assay (IFA); and against Borrelia burgdorferi (strain G39/40) by enzyme-linked immunosorbent assay (ELISA). The presence of antibodies to anti-R.

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Article Synopsis
  • The study assessed tick-borne infections in 322 dogs (172 rural, 150 urban) in Chapadinha, northeastern Brazil, highlighting seroreactivity to several pathogens.
  • Overall, 16.1% showed antibodies against Babesia vogeli, 14.6% against Ehrlichia canis, and 18.9% against various Rickettsia species, with notable high titers for Rickettsia amblyommii.
  • Ticks from urban dogs were exclusively Rhipicephalus sanguineus, while rural dogs had a more diverse tick population, including Amblyomma species, with one tick found infected by Rickettsia bellii, emphasizing the need for better disease management in the region
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Canine ehrlichiosis and babesiosis are the most prevalent tick-borne diseases in Brazilian dogs. Few studies have focused attention in surveying tick-borne diseases in the Brazilian Amazon region. A total of 129 blood samples were collected from dogs living in the Brazilian eastern Amazon.

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Article Synopsis
  • This study reports the first detection of Hepatozoon spp. and Babesia spp. in 10 dogs from Cuiabá, Brazil.
  • Six dogs tested positive for Babesia spp., while nine tested positive for Hepatozoon spp., with five dogs exhibiting co-infection.
  • The findings confirm the presence of B. canis vogeli and H. canis in domestic dogs, marking the first molecular identification of these parasites in this region.
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