[1] Hospital Universitario Severo Ochoa,Pediatrics Department
[2] Fundación para la Investigación Biomédica,Department of Immunology
[3] Hospital Universitario Puerta de Hierro,Respiratory Virus and Influenza Unit
[4] CIBER de Enfermedades Infecciosas (CIBERINFEC),Pediatric Infectious Diseases Department
[5] Translational Research Network in Pediatric Infectious Diseases (RITIP),undefined
[6] IIS-Fundación Jiménez Díaz,undefined
[7] CIBER de Enfermedades Respiratorias (CIBERES),undefined
[8] National Microbiology Centre (ISCIII),undefined
[9] Hospital Universitario La Paz,undefined
[10] Fundación IdiPaz,undefined
[11] TEDDY Network (European Network of Excellence for Pediatric Clinical Research),undefined