Volume 10, Number 4, April 2004

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†‡
*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; and ¶Chang Gung Children's Hospital, Tao-Yuan, Taiwan

Figure 5. Phylogenetic tree of H1N1 influenza A viruses for HA nucleotide sequences. Five recent vaccine strains were included along with the 24 Taiwanese strains and six reference strains considered previously in Figure 4. The tree was rooted with A/Puerto Rico/8/34. Sequence analysis was conducted using the software Lasergene, Clustal W, and PHYLIP with 1,000 replicates. Sequences contained 561 to 564 nt bases from positions 120 to 683, based on A/Puerto Rico/8/34.

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This page last reviewed March 9, 2004

Emerging Infectious Diseases Journal
National Center for Infectious Diseases
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