TABLE 1.
Genetic similarity between eight gene segments of A/chicken/Texas/298313/04 (H5N2) and other influenza virus isolates
| Gene | Region of comparison (nucleotides) | % Nucleotide (amino acid) similarity with influenza virus:
|
Lineage | |
|---|---|---|---|---|
| TX/02 (H5N3)a | Virus with highest identity, excluding TX/02b | |||
| H5 HA | 29-723 | 97.8 (98.6) | DK/NY/44018-2/00 (H5N2)—91.6 (91.1) | North American |
| N2 NA | 20-1390 | TK/CA/D0208652-C/02 (H5N2)—95.8 (96.3) | Eurasian | |
| NS (NS1, NS2) | 27-864 | 98.7 (97.8, 99.1) | Pintail/Alberta/156/97 (H3N8)—95.3 (92.6, 98.2) | North American |
| M (M1, M2) | 26-1014 | 99.0 (99.2, 99.0) | Mallard/Alberta/17/91 (H9N2)—96.1 (96.3, 97.9) | North American |
| NP | 46-1542 | 99.1 (99.6) | Mallard/Alberta/226/98 (H2N3)—96.3 (98.4) | North American |
| PA | 25-2175 | 95.1 (97.5) | Shorebird/DE/9/96 (H9N2)—94.8 (98.9) | North American |
| PB1 | 25-2298 | 91.4 (97.6) | Swine/Ontario/K01477/01 (H3N3)—95.2 (98.4) | North American |
| PB2 | 28-2307 | 92.8 (96.8) | CK/Quaretaro/14588-19/95 (H5N2)—94.4 (97.6) | North American |
a
A/chicken/Texas/67280-4/02 (H5N3) isolate.
b
Abbreviations: CK, chicken; DK, duck; TK, turkey. Standard two-letter abbreviations are used for states in the United States.