Abstract
Parvoviruses are a diverse group of viruses containing some of the smallest known species that are capable of infecting a wide range of animals. Metagenomic sequencing of pooled rectal swabs from adult pigs identified a 4103-bp contig consisting of two major open reading frames encoding proteins of 672 and 469 amino acids (aa) in length. BLASTP analysis of the 672-aa protein found 42.4% identity to fruit bat (Eidolon helvum) parvovirus 2 (EhPV2) and 37.9% to turkey parvovirus (TuPV) TP1-2012/HUN NS1 proteins. The 469-aa protein had no significant similarity to known proteins. Genetic and phylogenetic analyses suggest that PPV7, EhPV2, and TuPV represent a novel genus in the family Parvoviridae. Quantitative PCR screening of 182 porcine diagnostic samples found a total of 16 positives (8.6%). Together, these data suggest that PPV7 is a highly divergent novel parvovirus prevalent within the US swine.
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