Rheumatic Heart DiseaseRheumatic FeverRheumatic DiseasesHeartHeart Valve DiseasesPenicillin G BenzathineStreptococcus pyogenesHeart ValvesNorthern TerritoryPharyngitisHeart RateStreptococcal InfectionsMitral Valve StenosisEthnologyInternational Council of NursesHeart DiseasesHeart AuscultationMitral ValveHeart Defects, CongenitalCrowdingStreptococcal VaccinesMyocarditisEndocarditisMolecular MimicryHeart FailureMitral Valve InsufficiencyNew MexicoEchocardiographyHeart Valve ProsthesisOceanic Ancestry GroupAntigens, BacterialSudanEndocarditis, BacterialMyocardiumAtrial FibrillationStreptococcusRheumatic NoduleDeveloping CountriesUgandaIndiaAcute DiseaseChronic DiseaseHeart TransplantationAortic ValveBacterial Outer Membrane ProteinsChoreaHeart Valve Prosthesis ImplantationPrevalenceSouth AfricaRisk Factors