Figure 2From: Polymorphic genetic characterization of the ORF7 gene of porcine reproductive and respiratory syndrome virus (PRRSV) in ChinaAlignment of the deduced amino acid sequences of the ORF7 gene of 98 Chinese isolates and 2 American reference strains (VR-2332 and MLV). Dots (.) indicate the same amino acids as in VR2332, and substitutions are indicated by the amino acid letter codes.Back to article page