Antibiotic ProphylaxisStreptococcus agalactiaeStreptococcal InfectionsPregnancy Complications, InfectiousInfant, Newborn, DiseasesInfectious Disease Transmission, VerticalInfant, NewbornPregnancyAmpicillin ResistanceSurgical Wound InfectionAnti-Bacterial AgentsAmpicillinObstetric Labor ComplicationsCefazolinFetal Membranes, Premature RupturePremedicationSepsisPuerperal InfectionBacteremiaPenicillinsFloxacillinVaginaPrenatal CareCarrier StateCefuroximeIncidenceRetrospective StudiesCardiotocographyBacterial InfectionsCesarean SectionOral Surgical ProceduresVesico-Ureteral RefluxAsphyxia NeonatorumCerebrospinal Fluid OtorrheaProsthesis-Related InfectionsFetal MonitoringDelivery, ObstetricEndocarditis, BacterialLabor, ObstetricPost-Exposure ProphylaxisPerinatal CareGastrostomyDental Care for Chronically IllFetal HypoxiaGuideline AdherenceCephalosporinsEscherichia coli InfectionsProspective StudiesClindamycinPerioperative CareCephradineLabor PresentationFetal DistressTrimethoprim-Sulfamethoxazole CombinationGentamicinsPatient IsolatorsMicrobial Sensitivity TestsCefotetanRisk FactorsObstetricsEndometritisCefonicidThoracic SurgeryBioterrorismUrinary Tract InfectionsPractice Guidelines as TopicEndocarditisDiagnostic Techniques, UrologicalStillbirthDental ProphylaxisDrug Resistance, BacterialStaphylococcal InfectionsWound InfectionDelivery RoomsPhysician's Practice PatternsAnti-Infective Agents, UrinaryParturitionTreatment OutcomeJoint ProsthesisPostoperative ComplicationsTime Factors