Corrigendum: Microbial Colonization From the Fetus to Early Childhood—A Comprehensive Review - Senn, Viola; Bassler, Dirk; Choudhury, Rashikh; Scholkmann, Felix; Righini-Grunder, Franziska; Vuille-dit-Bille, Raphael N.; Restin, Tanja (Frontiers in Cellular and Infection Microbiology, 2021)