Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
(A) Phylogenetic analysis of H5N6 viruses in China. The clade origins of each internal gene are indicated by different colored bars. Detailed phylogenetic trees are available as S1 Fig and S1 Table. H5N6 human strains are marked as red circles, virus labeled with a red asterisk was used in the present research. (B) Frequencies of H5N6 viruses carrying H9N2 virus-derived internal genes of human and avian origin.
