Construction of an infectious bronchitis virus vaccine strain carrying chimeric S1 gene of a virulent isolate and its pathogenicity analysis. - Lv, Chenfei; Shi, Tingting; Zhu, Pengpeng; Peng, Xing; Cao, Shangshang; Yan, Yan; Ojha, Nishant Kumar; Liao, Min; Zhou, Jiyong (Applied Microbiology & Biotechnology, 2020)