Respiratory Tract InfectionsBodily SecretionsRespiratory Syncytial Virus InfectionsRespiratory Syncytial VirusesRespiratory Syncytial Virus, HumanRespiratory Tract DiseasesParamyxoviridae InfectionsHuman bocavirusMetapneumovirusBronchiolitisRespiratory SoundsRespiratory Syncytial Virus VaccinesVirus DiseasesSeasonsRespiratory SystemInfant, NewbornPneumonia, ViralBronchitisAnti-Bacterial AgentsLungPneumoniaNasopharynxMoraxella (Branhamella) catarrhalisPneumonia, BacterialBocavirusAcute DiseaseTracheaCommunity-Acquired InfectionsBronchiolitis, ViralHaemophilus influenzaeBronchoalveolar Lavage FluidPicornaviridae InfectionsRespiratory Tract NeoplasmsParainfluenza Virus 3, HumanStreptococcus pneumoniaeRhinovirusNasal MucosaNeisseriaceae InfectionsSputumBronchiVirusesCoughAerosolsRespirovirus InfectionsBordetella InfectionsFerretsHospitalizationProspective StudiesBacterial InfectionsCommon ColdSeverity of Illness IndexBordetella bronchisepticaHaemophilus InfectionsNasal CavityInfluenza, HumanUrinary Tract InfectionsParvovirinaeParainfluenza Virus 2, HumanLung DiseasesParvoviridae InfectionsOrthomyxoviridae InfectionsAdministration, IntranasalNasal Lavage FluidPneumonia, PneumococcalBronchopneumoniaNoseBordetella parapertussisInfluenza A virusCroupMycoplasma pneumoniaeMycoplasma InfectionsTracheitisPneumococcal InfectionsAmoxicillin-Potassium Clavulanate CombinationGastrointestinal TractSigmodontinaeWegener GranulomatosisAntibodies, ViralPharynxCost of IllnessUrinary TractCoronavirus InfectionsCritical IllnessAsthmaDrug UtilizationImmunoglobulin ACoronaviridae InfectionsAntibodies, BacterialParainfluenza Virus 1, HumanRespiratory MucosaTime FactorsRisk FactorsBronchoalveolar LavagePneumonia, MycoplasmaAnti-Infective AgentsMoraxellaceae InfectionsInfluenza A Virus, H1N1 SubtypeImmunocompromised HostPulmonary AlveoliAdministration, Inhalation