An update on genetic analysis of porcine reproductive and respiratory syndrome virus type 2 (PRRSV-2) in South America: identification of ORF5 sequences of lineage 1A, 1C and 1G.

Abstract excerpt

Data regarding PRRSV-2 in South America are scant and a coordinated criterion for molecular characterization is needed. A phylogenetic analysis was performed using a dataset of 76 ORF5 sequences from South America, and results showed the identification of lineage 5 in the early 2000s and the predominance of lineage 1 at least since 2013. Lineage 1 sequences were further classified into sub-lineages according to a...

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