Westward Spread of Highly Pathogenic Avian Influenza A(H7N9) Virus among Humans, China.
Yang Q., Shi W., Zhang L., Xu Y., Xu J., Li S., Zhang J., Hu K., Ma C., Zhao X., Li X., Liu F., Tong X., Zhang G., Yu P., Pybus OG., Tian H.
We report infection of humans with highly pathogenic avian influenza A(H7N9) virus in Shaanxi, China, in May 2017. We obtained complete genomes for samples from 5 patients and from live poultry markets or farms in 4 cities. Results indicate that H7N9 is spreading westward from southern and eastern China.