Treatment Further exam Empirical treatment: vancomycin and cefepime Initial blood cultures: MSSA Sputum Acid-Fast Bacilli: Negative Serum cryptococcal antigens histoplasma antigen: Negative Switched to intravenous oxacillin Echocardiogram: large-sized, freely mobile vegetation on the pulmonic valve with moderate pulmonic insufficiency Completely recover without surgeryTreatment & Further exam • Empirical treatment: vancomycin and cefepime • Initial blood cultures : MSSA • Sputum Acid-Fast Bacilli: Negative • Serum cryptococcal antigens & histoplasma antigen: Negative • Switched to intravenous oxacillin • Echocardiogram: large-sized, freely mobile vegetation on the pulmonic valve with moderate pulmonic insufficiency • Completely recover without surgery