| Human | Avian | Swine | |||
---|---|---|---|---|---|---|
 | H3N2 | H1N1 | H3N2 | H1N1 | H3N2 | H1N1 |
55–740 SNV |  |  |  |  |  |  |
 C-G | 0.76 | 99.6 | 92.79 | 93.1 | 74.53 | 79.51 |
 T-A | 98.91 | 0.01 | 0 | 0 | 1.51 | 0.88 |
 C-A | 0.04 | 0 | 0.32 | 1.55 | 0 | 0 |
 T-G | 0.29 | 0.39 | 6.89 | 5.44 | 23.96 | 19.61 |
740A SNV | Â | Â | Â | Â | Â | Â |
 T-A | 99.96 | 100 | 0 | 0 | 100 | 100 |
 C-A | 0.04 | 0 | 100 | 100 | 0 | 0 |