Corrigendum: The Role of Toll-Like Receptor-2 in Clostridioides difficile Infection: Evidence From a Mouse Model and Clinical Patients - Lai, Yi-Hsin; Tsai, Bo-Yang; Hsu, Chih-Yu; Chen, Yi-Hsuan; Chou, Po-Han; Chen, Yueh-Lin; Liu, Hsiao-Chieh; Ko, Wen-Chien; Tsai, Pei-Jane; Hung, Yuan-Pin (Frontiers in Immunology, 2021)