Summary of sample information, assembly-related statistics, and genomic features of sequenced PRRSV strains.

#: cell culture supernatant (CCS); swine lung tissue (SLT). ∧: coverage estimated using prototype isolates for type 1 (LV) and type 2 (ATCC VR2332) PRRSV as references. *: positions of amino acid deletions given are based on the Nsp2 protein from prototype isolates of type 1 (LV) and type 2 (ATCC VR2332) PRRSV. +: number obtained after quality filtering procedures detailed in the methods section. //: depth calculation takes into account duplicate reads as well.