title: Respiratory coronavirus infections in children younger than two years of age.
authors.affiliation: Department of Otorhinolaryngology, University of Helsinki, Finland.
authors.forename: J
authors.initials: J
authors.lastname: Nokso-Koivisto
authors.forename: A
authors.initials: A
authors.lastname: Pitkäranta
authors.forename: S
authors.initials: S
authors.lastname: Blomqvist
authors.forename: T
authors.initials: T
authors.lastname: Kilpi
authors.forename: T
authors.initials: T
authors.lastname: Hovi
mesh_terms: D002675:Child, Preschool; D017934:Coronavirus / Q000235:genetics / Q000302:isolation & purification*; D018352:Coronavirus Infections / Q000175:diagnosis* / Q000821:virology*; D004432:Ear, Middle / Q000821:virology; D006801:Humans; D007223:Infant; D009305:Nasopharynx / Q000821:virology; D009693:Nucleic Acid Hybridization; D010034:Otitis Media with Effusion / Q000175:diagnosis / Q000821:virology*; D012141:Respiratory Tract Infections / Q000175:diagnosis / Q000821:virology*; D020133:Reverse Transcriptase Polymerase Chain Reaction