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Genetic relationships between the HA1 of the strains used for immunization.
| Percentage Amino Acid (aa) Identities (Lower Left) and Number of Different aa at Antigenic Sites, out of a Total of 40 (Upper Right) | ||||
|---|---|---|---|---|
| NC95 | G08 | PA10 | MO15 | |
| NC95 | - | 18 | 12 | 14 |
| G08 | 83.0 | - | 20 | 19 |
| PA10 | 91.5 | 81.5 | - | 16 |
| MO15 | 87.2 | 79.6 | 84.2 | - |
NC95; A/Nanchang/95, G08; A/swine/Gent/172/2008, PA10; A/swine/Pennsylvania/A01076777/2010, MO15; A/swine/A01840724/2015, -; not applicable, HA1; Hemagglutinin 1.
