title: Human metapneumovirus in Costa Rica.
authors.forename: Rolando
authors.initials: R
authors.lastname: Ulloa-Gutierrez
authors.forename: Félix
authors.initials: F
authors.lastname: Vargas-Jiménez
authors.forename: Adriana
authors.initials: A
authors.lastname: Mora-Chavarría
authors.forename: Maria A
authors.initials: MA
authors.lastname: Umaña
authors.forename: Mónica
authors.initials: M
authors.lastname: Calvo-Espinoza
authors.forename: Wilbert
authors.initials: W
authors.lastname: Alfaro-Bourrouet
mesh_terms: D002675:Child, Preschool; D003364:Costa Rica / Q000453:epidemiology; D005260:Female; D019085:Fluorescent Antibody Technique, Direct; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D008297:Male; D029121:Metapneumovirus; D018184:Paramyxoviridae Infections / Q000453:epidemiology* / Q000821:virology*; D012680:Sensitivity and Specificity