One-Health Challenge in H9N2 Avian Influenza: Novel Human-Avian Reassortment Virus in Guangdong Province, China

Figure 9

The NA neck deletions of H9N2 sequences and the mutation frequencies of the amino acids HA Q226L and G228S, PB2 E627K, and D701N, PA K356R, M1 N30D, and T215A, M2 S31N, PB1-F2 N66S, NS1 P42S, and D92E were counted for the years 2017–2022.