A novel antigenic epitope identified on the accessory protein NS6 of porcine deltacoronavirus.

"Declaration of competing interest The authors declare that they have no conflict of interest."

"This work was supported by Innovation Program of 10.13039/501100005196Chinese Academy of Agricultural Sciences (CAAS-CSLPDCP-202301). Qiuge Liu: Data curation, Formal analysis, Methodology, Visualization, Writing – original draft. Jianxiao Wu: Investigation, Methodology, Visualization. Na Gao: Methodology, Visualization. Xiaorong Zhang: Methodology, Visualization. Mingze Gao: Methodology, Visualization. Xin Zhang: Investigation, Software. Longjun Guo: Investigation, Resources. Yang Wu: Software, Validation. Da Shi: Investigation, Visualization. Hongyan Shi: Investigation, Visualization. Jianfei Chen: Conceptualization, Funding acquisition, Project administration, Resources, Supervision, Writing – original draft, Writing – review & editing. Li Feng: Resources, Visualization, Writing – review & editing."