GranulomaRespiratory Tract InfectionsGranuloma, Foreign-BodyRespiratory SystemGranuloma, PyogenicEosinophilic GranulomaGranuloma, Respiratory TractGranuloma AnnulareGranuloma, Giant CellRespiratory Tract DiseasesParamyxoviridae InfectionsNasopharynxVirus DiseasesAcute DiseaseLungRespiratory Syncytial Virus InfectionsGranuloma InguinaleMetapneumovirusAnti-Bacterial AgentsPeriapical GranulomaRespiratory Syncytial VirusesGranuloma, LaryngealRespiratory Tract NeoplasmsCommon ColdRhinovirusHuman bocavirusBronchitisPicornaviridae InfectionsInfant, NewbornRespiratory Syncytial Virus, HumanPneumoniaSeasonsVirusesPneumonia, ViralHaemophilus influenzaeMycoplasma pneumoniaeLung DiseasesPneumonia, MycoplasmaNasal Lavage FluidTracheaInfluenza, HumanLiver Diseases, ParasiticNasal MucosaUrinary Tract InfectionsBronchiolitisMoraxella (Branhamella) catarrhalisBordetella InfectionsBordetella bronchisepticaNoseStreptococcus pneumoniaeRespirovirus InfectionsPneumonia, BacterialPharynxBacterial InfectionsAerosolsSchistosomiasis mansoniOtitis MediaSarcoidosisBronchoalveolar Lavage FluidBronchiolitis, ViralTuberculomaAdenoviridae InfectionsHaemophilus InfectionsRespirovirusChlamydophila pneumoniaeGastrointestinal TractRespiratory SoundsMycoplasma InfectionsSchistosoma mansoniBronchopneumoniaCommunity-Acquired InfectionsAdenovirus Infections, HumanSputumCoughUrinary TractPharyngitisAdministration, IntranasalBordetella pertussisOrthomyxoviridae InfectionsWhooping CoughMice, Inbred BALB CNasal CavityProspective StudiesInfluenza A virusAsthmaTracheitisBocavirusOrthomyxoviridaeBronchiTonsillitisPolymerase Chain ReactionPneumococcal InfectionsPseudomonas InfectionsRespiratory MucosaParainfluenza Virus 3, HumanDrug UtilizationBodily SecretionsNasopharyngitisHospitalizationTime Factors