Genetic Characterization of Highly Similar H9N2 Viruses Isolated from Swine and Poultry in China.
H9N2 avian influenza viruses (AIVs) are widely distributed in poultry and have attracted continued attention because of their high reassortment potential and ability to cross species barriers. In March 2019, two H9N2 viruses were isolated from a pig and a chicken, respectively, in Shandong Province, China. In this stud...