Novel Reassortant Avian Influenza A(H5N6) Virus, China, 2021

Although reports of human infection with influenza A(H5N6) increased in 2021, reports of similar H5N6 virus infection in poultry are few. We detected 10 avian influenza A(H5N6) clade viruses in poultry from 4 provinces in China. The viruses showed strong immune-escape capacity and complex genetic recombination, suggesting further transmission risk.