TABLE 2.
Genetic homology of the H5N1 Hong Kong avian influenza viruses
| Gene segment | Region sequenced | % Homology among H5N1 virusesa | Virus with greatest homology to CHK915-97b | % Homology with CHK915-97 |
|---|---|---|---|---|
| PB2 | 40–2306 | 98.4–100.0 | A/Budgerigar/Hokkaido/1/77 (H4N6) | 90.1 |
| PB1 | 31–2258 | 98.6–99.9 | A/Duck/Nanchang/266/98 (H4N6) | 90.6 |
| PA | 11–2165 | 98.0–99.8 | A/Swine/Hong Kong/81/78 (H3N2) | 91.0 |
| HA | 21–1746 | 98.4–99.9 | A/Turkey/England/91 (H5N1) | 93.5 |
| NP | 29–1543 | 98.5–99.8 | A/Mallard/Astrakhan/244/82 (H14N6) | 93.6 |
| NA | 64–1381 | 98.6–99.9 | A/Aquatic bird/Hong Kong/m603/98 (H11N1) | 91.1 |
| M | 28–1000 | 98.6–100.0 | A/Duck/Hong Kong/698/79 (H5N3) | 98.5 |
| NS | 21–867 | 97.9–100.0 | A/Duck/Nanchang/1944/93 (H7N4) | 93.7 |
a
HK156-97, CHK258-97, DHK46-97, GHK355-97, CHK915-97, CHK728-97, and CHK786-97 were used to analyze the homology among the H5N1 Hong Kong viruses.
b
CHK915-97 was chosen as the representative virus and was used to search the sequences in GenBank and our local database.