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Comparison based on the percent amino acid identity of the HA1 domain and their antigenic sites between Chilean A(H1N1)pdm09-like swine IAVs and the commercial pandemic vaccine strain A/California/04/2009(H1N1).
| Chilean A(H1N1)pdm09-like swine IAVs | ||
|---|---|---|
| HA1 | Antigenic sites | |
| Chilean A(H1N1)pdm09-like swine IAVs | 91.4–100 | 76.0–100 |
| A/California/04/2009(H1N1) | 94.2–97.9 | 82.0–96.0 |
