Rheumatic FeverRheumatic Heart DiseaseRheumatic DiseasesMyocarditisChoreaStreptococcus pyogenesAntistreptolysinPharyngitisFeverStreptococcal InfectionsPenicillin G BenzathineGrenadaAcute DiseaseHeart Valve DiseasesLyme DiseaseNorthern TerritoryMitral Valve InsufficiencyRheumatic NoduleAortic Valve InsufficiencyHeart ValvesMitral ValvePyodermaQ FeverStreptococcal VaccinesScarlet FeverCardiaArthritis, InfectiousOceanic Ancestry GroupBorrelia burgdorferiStreptococcusAntigens, BacterialAntibodies, BacterialEchocardiography, Doppler, ColorArthritis, ReactiveYellow FeverTyphoid FeverNew CaledoniaAdams-Stokes SyndromeRecurrencePenicillinsHeart MurmursInternational Council of NursesMitral Valve StenosisGlomerulonephritisBacterial Outer Membrane ProteinsFever of Unknown OriginEchocardiography