Infective Endocarditis Treatment Guide Interactive Infective Endocarditis Treatment Guide Select Valve Type: Select Valve Type Native Valve Prosthetic Valve Select Organism: Select Organism Streptococci (Penicillin-sensitive) Streptococci (Penicillin-resistant) Staphylococcus aureus (MSSA) Staphylococcus aureus (MRSA) Staphylococcus (Coagulase-negative, Prosthetic Valve) Enterococci (Ampicillin-sensitive) Enterococci (VRE) HACEK Organisms Fungal Endocarditis Submit Select both options and click submit to see the treatment details.