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.
| EF origin | Passage | Du/H7N7 | Ch/H9N2 | Tu/H6N8 |
| Chicken | 1 | 6.80 | 5.08 | 6.46 |
| 3 | 7.18 | 7.32 | 6.61 | |
| Turkey | 1 | 7.38 | 5.78 | 6.61 |
| 3 | 6.98 | 7.18 | 6.93 | |
| Pekin duck | 1 | 5.84 | 5.45 | 4.99 |
| 3 | 6.72 | 6.94 | 5.95 | |
| Homing pigeon | 1 | 3.26 | 3.26 | 3.68 |
| 3 | 3.68 | 5.68 | 4.38 |
