Table 3. Codons under positive selection in HA1 of human A(H1N1) influenza viruses.
Positively selected sites1 | ||
I- v 2006∼2008 (100 strains) | M2a | 156 (97.5%), 190 (100%) |
M8 | 156 (99.7%), 190 (100%) |
Positively selected sites1 | ||
I- v 2006∼2008 (100 strains) | M2a | 156 (97.5%), 190 (100%) |
M8 | 156 (99.7%), 190 (100%) |