title: Reply.
authors.affiliation: Center for Vaccines and Immunity Division of Pediatric Infectious Diseases.
authors.forename: Asuncion
authors.initials: A
authors.lastname: Mejias
authors.affiliation: Center for Perinatal Research Division of Neonatology and Pediatric Infectious Diseases.
authors.forename: Pablo J
authors.initials: PJ
authors.lastname: Sánchez
authors.affiliation: Center for Vaccines and Immunity Division of Pediatric Infectious Diseases Nationwide Children's Hospital Columbus, Ohio.
authors.forename: Octavio
authors.initials: O
authors.lastname: Ramilo
mesh_terms: D001988:Bronchiolitis; D002648:Child; D005260:Female; D006760:Hospitalization; D006801:Humans; D007223:Infant; D036801:Parturition; D010372:Pediatrics; D011247:Pregnancy; D018113:Respiratory Syncytial Virus, Human; D014481:United States