Decline in rheumatic fever.
D000942:Antigens, Bacterial; D001425:Bacterial Outer Membrane Proteins; D001426:Bacterial Proteins / Q000276:immunology; D001428:Bacterial Vaccines; D002352:Carrier Proteins; D002648:Child; D002675:Child, Preschool; D003906:Developing Countries; D006801:Humans; D007223:Infant; D012213:Rheumatic Fever / Q000453:epidemiology* / Q000517:prevention & control
D000942:Antigens, Bacterial; D001425:Bacterial Outer Membrane Proteins; D001426:Bacterial Proteins; D001428:Bacterial Vaccines; D002352:Carrier Proteins; C014689:streptococcal M protein