Respiratory Tract InfectionsUrinary Tract InfectionsMetapneumovirusParamyxoviridae InfectionsAcute DiseaseHuman bocavirusNasopharynxIsatisPenicillin VAnti-Bacterial AgentsRespiratory Syncytial Virus InfectionsPicornaviridae InfectionsRhinovirusRespiratory Syncytial VirusesDrug UtilizationRespiratory Syncytial Virus, HumanPhysician's Practice PatternsSeasonsInfant, NewbornRespiratory SystemVirus DiseasesParvoviridae InfectionsPhylogenyPolymerase Chain ReactionMoraxella (Branhamella) catarrhalisCommon ColdPrevalenceChinaBronchitisCommunity-Acquired InfectionsRespiratory Tract DiseasesBacterial InfectionsDrug PrescriptionsIncidenceHaemophilus influenzaeSequence Analysis, DNAPneumoniaBronchiolitisStreptococcus pneumoniaeOtitis MediaPneumonia, ViralPharyngitisTonsillitisFamily PracticeReproductive Tract InfectionsHaemophilus InfectionsPneumonia, BacterialHospitalizationCoughBocavirusNeisseriaceae InfectionsAmoxicillin-Potassium Clavulanate CombinationAnti-Infective AgentsParvovirinaeProspective StudiesAnti-Infective Agents, UrinaryUrinary TractDiagnostic Test ApprovalSinusitisMycoplasma pneumoniaeLungMacrolidesMicrobial Sensitivity TestsVirusesRespiratory SoundsRespiratory Tract NeoplasmsBacteriuriaVesico-Ureteral RefluxBronchopneumoniaNasal MucosaMoraxellaceae InfectionsUrinary CatheterizationSputumPneumococcal InfectionsPneumonia, MycoplasmaDrug Resistance, BacterialEscherichia coli InfectionsBodily SecretionsBronchiolitis, ViralFluoroquinolonesPyelonephritisAzithromycinChlamydophila pneumoniaeTracheaBordetella InfectionsUrineRespirovirus InfectionsDrug Resistance, MicrobialReverse Transcriptase Polymerase Chain ReactionNoseKetolidesIgG DeficiencyPneumonia, PneumococcalMolecular Sequence DataCystitisProteus InfectionsInappropriate PrescribingPharynxFeverCoronavirus