From: Impact of antigenic and genetic drift on the serologic surveillance of H5N2 avian influenza viruses
Year of isolation | Percentage of sequence identity |
---|---|
1994 (n = 29) | 97.7 ± 2.1a |
1995 (n = 16) | 97.5 ± 1.4a |
1996 (n = 4) | 96.5 ± 0.5ab |
1997 (n = 8) | 96.0 ± 0.5b |
1998 (n = 11) | 94.5 ± 0.5b |
2002 (n = 8) | 92.7 ± 0.4c |
2005 (n = 5) | 90.8 ± 0.4d |
2006 (n = 6) | 90.1 ± 0.4d |
2007 (n = 9) | 91.1 ± 3.3c |
2008 (n = 3) | 91.0 ± 0.0c |