The full-length genome of a strain of type 1 PRRSV (GZ11-G1) was sequenced.
GZ11-G1 shares highest homology (96.3%) with the live vaccine virus Amervac PRRS.
GZ11-G1 is clustered with the strains of type PRRSV by phylogenetic analysis.
The evolution of GZ11-G1 is genetically related to the strains of type PRRSV.
GZ11-G1 is a pathogenic type 1 PRRSV for piglets.