Volume 15, Number 9—September 2009
Dispatch
Highly Pathogenic Avian Influenza Virus A (H7N3) in Domestic Poultry, Saskatchewan, Canada, 2007
Yohannes Berhane, Tamiko Hisanaga, Helen Kehler, James Neufeld, Lisa Manning, Connie Argue, Katherine Handel, Kathleen Hooper-McGrevy, Marilyn Jonas, John Robinson, Robert G. Webster, and John Pasick
Table 2
Comparison of 8 gene segments of avian influenza virus (H7N3) A/chicken/Saskatchewan/HR-00011/2007 with 2 recent viruses (H7N3) isolated from wild waterfowl, Saskatchewan, Canada, 2007*
| Gene | A/American black duck/New Brunswick/2538/2007 |
A/Canada goose/British Columbia/3752/2007 |
|||
|---|---|---|---|---|---|
| % nt identitiy | % aa identity | % nt identity | % aa identity | ||
| PB2 | 92 | 97.8 | 92 | 97.8 | |
| PB1 | 97 | 99.2 | 97 | 99.1 | |
| PA | 98 | 95.5 | 97 | 95.4 | |
| H7 | 96 | 96.3 | 97 | 97 | |
| NP | 94 | 97.4 | 94 | 97.2 | |
| N3 | 96 | 98.3 | 98 | 98.3 | |
| M1 | 96 | 98.8 | 97 | 98.8 | |
| M2 | 98 | 97.9 | 99 | 100 | |
| NS1 | 80 | 68.7 | 80 | 69.1 | |
| NS2 | 80 | 82.5 | 80 | 82.5 | |
*GenBank accession nos. EU500841–EU500864. PB2, RNA polymerase subunit B2; PB1, RNA polymerase subunit B1; PA, RNA polymerase subunit A; H7, hemagglutinin 7; NP, nucleoprotein; N3, neuraminidase 3; M1, matrix protein 1; M2, matrix protein 2; NS1, nonstructural protein 1; NS2, nonstructural protein 2.
