Respiratory Tract InfectionsUrinary Tract InfectionsAnti-Bacterial AgentsRecurrenceRespiratory SystemParamyxoviridae InfectionsMetapneumovirusBacterial InfectionsRespiratory Syncytial Virus InfectionsJob SyndromeNasopharynxImmunologic Deficiency SyndromesHuman bocavirusIgG DeficiencyRespiratory Syncytial VirusesDysgammaglobulinemiaMoraxella (Branhamella) catarrhalisCommon ColdVirus DiseasesAcute DiseaseInfectionBronchitisCommunity-Acquired InfectionsRespiratory Tract DiseasesAgammaglobulinemiaInfant, NewbornCommon Variable ImmunodeficiencyHaemophilus influenzaePneumoniaBronchiolitisStreptococcus pneumoniaeOtitis MediaPicornaviridae InfectionsDrug UtilizationPneumonia, ViralHypergammaglobulinemiaPharyngitisRhinovirusBronchiectasisTonsillitisProspective StudiesProsthesis-Related InfectionsRespiratory Syncytial Virus, HumanReproductive Tract InfectionsHaemophilus InfectionsPneumonia, BacterialPhysician's Practice PatternsMicrobial Sensitivity TestsCoughBocavirusNeisseriaceae InfectionsEscherichia coli InfectionsAmoxicillin-Potassium Clavulanate CombinationAnti-Infective AgentsParvovirinaePhagocyte Bactericidal DysfunctionIgA DeficiencyParvoviridae InfectionsSeasonsOpportunistic InfectionsGranulomatous Disease, ChronicAnti-Infective Agents, UrinaryUrinary TractCommunicable DiseasesDiagnostic Test ApprovalSinusitisMycoplasma pneumoniaeRetrospective StudiesLungDebridementMacrolidesTreatment OutcomeVirusesPolymerase Chain ReactionDrug PrescriptionsRespiratory SoundsRespiratory Tract NeoplasmsBacteriuriaWiskott-Aldrich SyndromeAntibodies, BacterialVesico-Ureteral RefluxBronchopneumoniaTime FactorsNasal MucosaMoraxellaceae InfectionsUrinary CatheterizationSputumPneumococcal InfectionsRisk FactorsPneumonia, MycoplasmaDrug Resistance, BacterialBodily SecretionsBronchiolitis, ViralImmunoglobulin AFluoroquinolonesHospitalizationPyelonephritisAzithromycinChlamydophila pneumoniaeTrachea