title: Group B streptococcus endocarditis in a prosthetic valve.
mesh_terms: D000368:Aged; D001021:Aortic Valve; D004697:Endocarditis, Bacterial / Q000209:etiology*; D006350:Heart Valve Prosthesis / Q000009:adverse effects*; D006801:Humans; D008297:Male; D013290:Streptococcal Infections; D013292:Streptococcus agalactiae