Emergence of an Antigenically Drifted and Reassorted Influenza B Virus at the end of the 2024-25 Influenza Season
Elgin Henry Akin, David A. Villafuerte, Anne P. Werner, Matthew Pinsley, Corinne Pierce, Amary Fall, Omar Riyadh Abdullah, Julie M. Norton, Richard Eric Rothman, Katherine Fenstermacher, Yu‐Nong Gong, Eili Y. Klein, Heba H. Mostafa, Andrew S Pekosz
This study identifies an antigenically drifted and reassorted Influenza B virus, C.3.1/re, emerging late in the 2024-25 season, which is poorly neutralized by existing vaccines and may impact future vaccine strain selection.
mBio · Jun 22, 2026Peer-reviewedMicrobiology