A bacterial infection that is caused by Staphylococcus aureus and is resistant to vancomycin treatment. The disease is Experimental Factor Ontology term EFO_0008558 (Vancomycin-Resistant Staphylococcus Aureus Infection). Also known as: VRSA, VRSA bacteremia, VRSA bacteremias, VRSA infection, Vancomycin-Resistant S. Aureus (VRSA) infection, Vancomycin-Resistant Staphylococcus aureus (VRSA) bacteremia, Vancomycin-Resistant Staphylococcus aureus (VRSA) infection, infection by VRSA.