Long-Term Immunogenicity and Protection of a rHVT-H9/Y280 Vaccine Against H9N2 Avian Influenza Virus in Commercial Layers with High Maternal Antibodies. - Kim, Sang-Won; Park, Jong-Yeol; Son, Ji-Eun; Zheng, Kai-Qiong; Yu, Cheng-Dong; Kim, Ki-Woong; Jeon, Won-Bin; Choi, Yu-Ri; Jang, Hyung-Kwan; Wei, Bai; Kang, Min (Animals (2076-2615), 2026)