Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
The numbers of co-mutation positions of five epitopes and the other area on HA protein
| Epitope A | Epitope B | Epitope C | Epitope D | Epitope E | Other area | sum | |
| Epitope A | 15 | 24 | 8 | 11 | 16 | 8 | 82 |
| Epitope B | 19 | 15 | 6 | 13 | 13 | 5 | 71 |
| Epitope C | 15 | 11 | 3 | 5 | 9 | 4 | 47 |
| Epitope D | 12 | 13 | 3 | 8 | 6 | 4 | 46 |
| Epitope E | 13 | 11 | 4 | 6 | 7 | 3 | 44 |
| Other area | 4 | 2 | 1 | 3 | 4 | 4 | 18 |
