Oral immunization of Nile tilapia with Chlorella-bioencapsulated multi-epitope fusion antigen effectively protects against Streptococcus agalactiae infection - Xiaodong Deng; Zichun Xiao; Dan Mu; Dianlong Xu; Juncai Li; Yuxuan Yang; Hanjie Gu; Yonghua Hu; Xiaowen Fei (Fish & Shellfish Immunology, 2026)