<prompt> A patient needs antibiotic treatment for Aificial valve, culture positive infective entercoccal endocarditis. His medical history include several anaphylactic reaction to penicillin G during the past year. The best approach would be treatment withAmoxicillin clavulanic acidAztreonamCefazolin plus gentamicinVancomycin  <response>: Ref-KDT 6e 732 Severe allergy to penicillins rule out the use of amoxicillin and cefazolin. Vancomycin is highly effective against MRSA and enterococcal intections. Drugs for VRSA and VRE Vancomvcin Resistant enterococcus faecalis include linezolid and daptomycin. 