Rheumatic Heart DiseaseRheumatic FeverRheumatic DiseasesHeart Valve DiseasesPenicillin G BenzathineNorthern TerritoryStreptococcus pyogenesHeart ValvesHeart DiseasesPharyngitisEthnologyStreptococcal InfectionsHeartInternational Council of NursesMitral Valve StenosisHeart AuscultationHeart Defects, CongenitalCrowdingChest PainMitral ValveEndocarditisStreptococcal VaccinesMolecular MimicryNew MexicoMyocarditisEchocardiographySudanHeart RateOceanic Ancestry GroupAntigens, BacterialRisk FactorsEndocarditis, BacterialHeart Valve ProsthesisMitral Valve InsufficiencyIndiaUgandaAtrial FibrillationDeveloping CountriesCoronary DiseasePrevalenceStreptococcusSouth AfricaChronic DiseaseBacterial Outer Membrane ProteinsAcute DiseaseMyocardiumHeart Valve Prosthesis ImplantationAortic ValveRetrospective StudiesFollow-Up StudiesProspective Studies