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Hepatozoon spp. in stray cats from the metropolitan area of Rio de Janeiro, Brazil. | LitMetric

AI Article Synopsis

  • A recent increase in studies on feline hepatozoonosis has revealed limited knowledge about the specific species and genotypes affecting cats, with at least three known species: Hepatozoon felis, H. canis, and H. silvestris.
  • A study in Niterói, Brazil, collected blood samples from 28 cats and found H. felis DNA in 75% of the samples, along with four previously unreported genetic variations.
  • This is the first report of H. felis in Rio de Janeiro cats, indicating a complex of different genotypes within the species, highlighting the need for further research to understand their biology and potential health impacts on felines.

Article Abstract

In the last few years, the number of studies on feline hepatozoonosis has increased, but our knowledge on the actual species of Hepatozoon and/or different genotypes affecting felines is still incipient. At least three species, namely Hepatozoon felis, H. canis, and H. silvestris, have been isolated from domestic cats in various countries. Additionally, there are indications that other species and genotypes may affect felines in given geographic areas. This study was carried out to investigate the occurrence of Hepatozoon spp. in cats from Niterói, a municipality within the metropolitan area of Rio de Janeiro, Brazil. Individual blood samples were collected from 28 cats enrolled in a spaying/castration program. DNA was extracted from all samples and subjected to sequencing specific for Hepatozoon spp. DNA of H. felis was found in 21/28 cats (75%), and four genetic polymorphisms never described thus far were detected. This is the first report of H. felis in cats living in the State of Rio de Janeiro, and the present data confirm that H. felis is a species complex encompassing different genotypes circulating within cat populations. Further studies are warranted to investigate whether different genotypes have different biology or pathogenicity for felids.

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Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC11101202PMC
http://dx.doi.org/10.1051/parasite/2024026DOI Listing

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