#Pathogenicity and #transmission of novel highly pathogenic #H7N2 #variants originating from #H7N9 avian #influenza viruses in #chickens, Virology: https://www.sciencedirect.com/science/article/abs/pii/S0042682224001429?via%3Dihub
4 HP H7N2 avian influenza viruses were isolated in #China during 2019. H7N2 isolates were #reassortants with H7N9-derived HA genes and #H9N2-derived NA genes. H7N9-derived HA genes might be a critical virulence contributor to novel H7 avian influenza viruses.