
Porcine Respirovirus 1 (PRV1) is an enveloped, single-stranded, negative-sense RNA virus belonging to the genus Respirovirus within the Paramyxoviridae family. Since its first detection in China in 2013, PRV1 has been identified in several American and European countries. Although its pathogenicity is uncertain, recent studies have suggested that it may play a role in the Porcine Respiratory Disease Complex (PRDC) because of its capacity to replicate in the upper and lower respiratory tracts. This study aimed to determine the spread of PRV1 in Northern Italy and the phylogeny of the isolates. Therefore, PRV1 was investigated using real-time RT-PCR in 902 samples collected from September 2022 to September 2023 from pigs with respiratory symptoms in North Italy. Fourteen (1.55%) samples tested as PRV1-positive. The full-length fusion (F) gene, which codifies for a major surface protein, was amplified and used for phylogenetic analysis to help carry out molecular epidemiological studies on this virus. In addition, swine influenza virus (SIV) and porcine reproductive and respiratory syndrome virus (PRRSV) infections were detected in most of the PRV1-positive samples. In conclusion, we report the detection of PRV1 in Italy and discuss its potential role as a co-factor in causing the Porcine Respiratory Disease Complex.
Swine Diseases, epidemiology detection, Swine, phylogenetic analysis, Communication, R, Porcine Reproductive and Respiratory Syndrome, Respirovirus Infections, Respirovirus, Italy, Medicine, Animals, Porcine respiratory and reproductive syndrome virus, Phylogeny, Porcine Respirovirus
Swine Diseases, epidemiology detection, Swine, phylogenetic analysis, Communication, R, Porcine Reproductive and Respiratory Syndrome, Respirovirus Infections, Respirovirus, Italy, Medicine, Animals, Porcine respiratory and reproductive syndrome virus, Phylogeny, Porcine Respirovirus
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