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Volume 10, Number 4—April 2004

Research

Influenza A Virus PB1-F2 Gene in Recent Taiwanese Isolates

Guang-Wu Chen*, Ching-Chun Yang†, Kuo-Chien Tsao†‡, Chung-Guei Huang†‡, Li-Ang Lee†‡, Wen-Zhi Yang§, Ya-Ling Huang†‡, Tzou-Yien Lin¶, and Shin-Ru Shih†‡Comments to Author 
Author affiliations: *National Health Research Institutes, Taipei, Taiwan; †Chang Gung University, Tao-Yuan, Taiwan; ‡Chang Gung Memorial Hospital, Tao-Yuan, Taiwan; §Center for Disease Control and Prevention, Taipei, Taiwan; ¶Chang Gung Children’s Hospital, Tao-Yuan, Taiwan

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Figure 6

Phylogenetic tree of influenza A H3N2 viruses for HA nucleotide sequences. Six recent vaccine strains were included along with the 17 Taiwanese strains and 13 reference strains shown in Figure 4. The tree was rooted with A/England/939/69. Sequence analysis was conducted by using the software Lasergene, Clustal W, and PHYLIP with 1,000 replicates. All sequences are 844-nt long from positions 187 to 1031, based on A/Hong Kong/1/68.

Figure 6. Phylogenetic tree of influenza A H3N2 viruses for HA nucleotide sequences. Six recent vaccine strains were included along with the 17 Taiwanese strains and 13 reference strains shown in Figure 4. The tree was rooted with A/England/939/69. Sequence analysis was conducted by using the software Lasergene, Clustal W, and PHYLIP with 1,000 replicates. All sequences are 844-nt long from positions 187 to 1031, based on A/Hong Kong/1/68.

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