β-lactam antibiotics vs. vancomycin for the early treatment of enterococcal bacteraemia: A retrospective cohort study.

Background: The efficacy of vancomycin compared with ampicillin for enterococcal infections is unknown. This study aimed to compare their efficacy among patients with enterococcal bacteraemia.

Methods: Retrospective cohort study including adults aged >16 years with enterococcal bacteraemia, treated with β-lactam antibiotics active against Enterococcus spp.