The 2009 pandemic H1N1 hemagglutinin stalk remained antigenically stable after circulating in humans for a decade
S. R. Christensen, E. T. Martin, J. Petrie, A. Monto, S. E. Hensley
The paper investigates whether the HA stalk of the 2009 pandemic H1N1 virus has undergone antigenic drift over a decade and finds it remains antigenically stable.
bioRxiv · Jan 3, 2022Microbiology