| BLI | Biolayer interferometry |
| HA | Hemagglutinin |
| HAI | Hemagglutination inhibition assay |
| HPLC | High-performance liquid chromatography |
| rHA | Recombinant hemagglutinin |
| vHA | Viral hemagglutinin |
| SA | Streptavidin |
| SAR | Structure−affinity relationship |
| SE-HPLC | Size-exclusion high-performance liquid chromatography |
| SPR | Surface plasmon resonance |
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