Abstract
This study is aimed at detecting Feline paramyxovirus (FPaV) and Feline morbillivirus (FeMV) in 35 urine samples from domestic cats, collected in 2019, with or without clinical signs of uropathies using a reverse transcription-polymerase chain reaction (RT-PCR) followed by semi-nested polymerase chain reaction (SN-PCR) assays to amplify a partial paramyxovirus L gene. Eight (22.9%) out of the 35 urine samples were positive for paramyxoviruses. Sequencing and phylogenetic analyses revealed that three samples were positive for FPaV, four samples were positive for FeMV, and it was not possible to determine which virus was present in one RT-SN-PCR positive urine sample. FPaV strains showed 100% nucleotide (nt) identity with each other and 97% nt identity with a Japanese 163 FPaV strain. The FeMV strains showed 85.9% nt identity with each other; three strains were similar to previously described Brazilian FeMV strains, and one strain clustered in a different branch of the phylogenetic tree together with the first described Chinese FeMV strain. This study provides the first description of FPaV strains in cats from Brazil and provides new information about the molecular characteristics of FPaV and FeMV strains circulating in domestic cats in Brazil.
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