TY - RPRT TI - Minor variants of swine H1N1 influenza viruses with enhanced polymerase activity and HA stability promote airborne transmission in ferrets AU - Hu, M. AU - Jones, J. AU - Banoth, B. AU - Ojha, C. R. AU - Crumpton, J. C. AU - Kercher, L. AU - Webster, R. G. AU - Webby, R. J. AU - Russell, C. J. PY - 2021 DO - 10.1101/2021.09.22.461336 UR - https://www.biorxiv.org/content/10.1101/2021.09.22.461336v1 ID - 10.1101/2021.09.22.461336 ER -