title: Erratum to: Protective role of gut commensal microbes against intestinal infections.
authors.affiliation: Department of Microbiology and Immunology, Yonsei University College of Medicine, Seoul, 120-752, Republic of Korea.
authors.forename: My Young
authors.initials: MY
authors.lastname: Yoon
authors.forename: Keehoon
authors.initials: K
authors.lastname: Lee
authors.forename: Sang Sun
authors.initials: SS
authors.lastname: Yoon