Structural basis of antigenic drift in FMDV O/Cathay topotype variants revealed by porcine-derived single B-cell neutralizing antibodies
The porcinophilic O/Cathay topotype variants of foot-and-mouth disease virus (FMDV) continuously accumulated mutations over time and produced antigenic drift, leading to diminished serum neutralization and compromised vaccine efficacy. However, the structural basis underlying this divergence remains poorly defined. Her...