Fig. 1.

Phylogenetic analysis of different parapoxviruses based on nucleotide sequences of the B2L gene (A) and partial virus interferon resistance gene (B). Nucleotide sequences of different orf viruses were aligned using the Bioedit program and Mega 4 software. One thousand bootstrap replicates were used to determine nucleotide sequence distance. A consensus phylogenetic tree that was created using the neighbor-joining methods is shown.