Antigenic mapping of the hemagglutinin of the H9 subtype influenza A viruses using sera from Japanese quail (Coturnix c. japonica).
S. Carnaccini, C. J. Caceres, L. C. Gay…·D. R. Perez
This study maps the antigenic sites of H9 influenza A virus hemagglutinin using quail sera, identifying key amino acid substitutions that affect antigenic profiles and vaccine efficacy.