Figure 2From: Comparative analysis of complete nucleotide sequence of porcine reproductive and respiratory syndrome virus (PRRSV) isolates in Thailand (US and EU genotypes)Phylogenetic relationship of PRRS viruses, ORF 5 sequences. ORF5 sequences were used for phylogenetic analysis using MEGA program applying NJ algorithm with Kimura 2-parameter. Bootstrap analysis was conducted with 2000 replication.Back to article page