Corrigendum: Immunoinformatics approach toward the introduction of a novel multi-epitope vaccine against Clostridium difficile - Tan, Caixia; Zhu, Fei; Xiao, Yuanyuan; Wu, Yuqi; Meng, Xiujuan; Liu, Sidi; Liu, Ting; Chen, Siyao; Zhou, Juan; Li, Chunhui; Wu, Anhua (Frontiers in Immunology, 2022)