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. 2005 Sep;79(17):11412–11421. doi: 10.1128/JVI.79.17.11412-11421.2005

FIG. 2.

FIG. 2.

Phylogenetic tree based on nucleotide sequences of the H5 HA gene. The tree was generated by the maximum parsimony method with the PAUP4.0b10 program with bootstrap replication (100 bootstraps) and a heuristic search method. The tree is rooted to A/chicken/Scotland/59. Previously identified highly pathogenic viruses are indicated as HP in parentheses. *, Ruddy Turnstone/NJ/2242/00 virus belongs to the recent live-bird market phylogenetic lineage, but the virus was not recovered from live-bird market. Abbreviations: CK, chicken; DK, duck; TK, turkey. Standard two-letter abbreviations are used for states in the United States.