Naiqing Xu, Xin Wang, Miao Cai, Xinen Tang, Wenhao Yang, Xiaolong Lu, Xiaowen Liu, Shunlin Hu, Min Gu, Jiao Hu, Ruyi Gao, Kaituo Liu, Yu Chen, Xiufan Liu, Xiaoquan Wang
Low pathogenic (LP) H7N9 avian influenza virus (AIV) emerged in 2013 and had spread widely over several months in China, experienced a noteworthy reduction in isolation rate in poultry and human since 2017. Here, we examined the transmission of H7N9 viruses to better understand viral spread and dissemination mechanisms. Three out of four viruses (2013-2016) could transmit in chickens through direct contact, and airborne transmission was confirmed in the JT157 (2016) virus. However, we did not detect the transmission of the two 2017 viruses, WF69 and AH395, through either direct or airborne exposure...
November 7, 2023: Veterinary Microbiology