HeartHeart DiseasesPharyngitisStreptococcusHeart RateHeart Defects, CongenitalCoronary DiseaseCorynebacterium pyogenesRheumatic Heart DiseasePharynxHeart FailureReagent Kits, DiagnosticMyocardial IschemiaRisk FactorsBacteriological TechniquesHeart TransplantationFetal HeartLatex Fixation TestsHeart ValvesEvaluation Studies as TopicCarcinoid Heart DiseaseTime FactorsProspective StudiesImmunoassayMastitis, BovineBacterial Typing TechniquesMyocardiumHeart AtriaFollow-Up StudiesMyocardial InfarctionAntigens, BacterialCyanosisEnterococcusHeart BlockCohort StudiesDiagnostic ErrorsCardiovascular DiseasesSensitivity and SpecificityHeart Function TestsEchocardiographyHeart Valve DiseasesCardiomyopathiesVaginaRisk AssessmentIncidenceMyocardial ContractionRiskHemodynamicsMyocytes, CardiacAge FactorsCause of DeathHeart Arrest, InducedHeart Septal DefectsSex FactorsProportional Hazards ModelsPrevalenceBiological MarkersChronic DiseaseCardiomyopathy, DilatedGram-Positive Bacterial InfectionsVentricular Function, LeftCase-Control StudiesAngina PectorisUnited StatesRetrospective StudiesTreatment OutcomeRheumatic FeverStreptococcus mutansPredictive Value of TestsCulture MediaCholesterol, HDLInfant, NewbornStroke VolumeCardiomegalySmokingCholesterolVentricular Dysfunction, LeftElectrocardiographyExercise TestCholesterol, LDLAnti-Bacterial AgentsCardiac Output, LowPrognosisHypertensionRNA, Ribosomal, 16SStrokeAdrenergic beta-AntagonistsDiabetes MellitusDeath, Sudden, CardiacMolecular Sequence DataHeart Valve ProsthesisCardiac Surgical ProceduresCardiotonic AgentsStreptococcus pneumoniaeCross-Sectional StudiesAmerican Heart AssociationLipidsHeart Septal Defects, VentricularMyocarditisMortality