Shedding of Neospora caninum oocysts by dogs fed tissues from naturally infected water buffaloes (Bubalus bubalis) from Brazil

Veterinary Parasitology
A A R RodriguesJ P Dubey

Abstract

Attempts were made to isolate Neospora caninum from naturally infected water buffaloes (Bubalus bubalis) from Brazil. Brains from six buffaloes with indirect fluorescent antibodies (>1:100) to N. caninum were used to isolate the parasite by bioassay in dogs and gerbils followed by in vitro culture. Shedding of Neospora-like oocysts was noticed in dogs fed brains from three buffaloes (isolate designation NcBrBuf-1, 2 and 4). Two more isolates (NcBrBuf-3 and 5) were obtained by in vitro culture of the brains of gerbils previously infected with brains of two other buffaloes. The identity of the isolates was confirmed by biological and molecular methods. The isolates were found to be non-pathogenic to gerbils. All five isolates amplified the gene 5 amplicons using Neospora-specific PCR assay. The sequences of gene 5 fragments and the common toxoplasmatiid ITS-1 fragments were analyzed. The dynamics of oocyst production in the dogs indicate that water buffaloes are natural intermediate hosts for N. caninum. This is the first report of isolation of N. caninum from water buffaloes.

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Citations

Feb 25, 2014·Parasitology Research·Andreas Lazaros ChryssafidisSolange Maria Gennari
Apr 13, 2007·Clinical Microbiology Reviews·J P DubeyL M Ortega-Mora
Apr 22, 2011·The Journal of Parasitology·A NasirF Akhtar
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Mar 23, 2007·International Journal for Parasitology·V Risco-CastilloL M Ortega-Mora
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Jan 30, 2014·Revista brasileira de parasitologia veterinária = Brazilian journal of veterinary parasitology : Órgão Oficial do Colégio Brasileiro de Parasitologia Veterinária·Anderson Barbosa de MouraSilvério Bunn
Dec 23, 2015·Revista brasileira de parasitologia veterinária = Brazilian journal of veterinary parasitology : Órgão Oficial do Colégio Brasileiro de Parasitologia Veterinária·Arthur Willian de Lima BrasilSergio Santos de Azevedo
Dec 15, 2007·Revista brasileira de parasitologia veterinária = Brazilian journal of veterinary parasitology : Órgão Oficial do Colégio Brasileiro de Parasitologia Veterinária·Leandra M OshiroRenato Andreotti
Jan 1, 2008·The Korean Journal of Parasitology·Rosangela Soares UzedaLuis Fernando Pita Gondim
Mar 17, 2019·Parasitology Research·Diana BărburașVasile Cozma
Aug 28, 2020·Frontiers in Veterinary Science·Luiz Daniel de BarrosSelwyn Arlington Headley
Sep 7, 2017·Revista brasileira de parasitologia veterinária = Brazilian journal of veterinary parasitology : Órgão Oficial do Colégio Brasileiro de Parasitologia Veterinária·Camila Koutsodontis Cerqueira-CézarSolange Maria Gennari

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