- Does not typically harbor AmpC beta-lactamases, therefore use susceptibility results to guide de-escalation
- Variable rates of ESBL production reported in literature
- Uncommonly isolated at MHS (<100 isolates system-wide in 2022)
- Of these there was a low rate of ESBL production
- Intrinsically resistant to cefazolin, ampicillin, Augmentin, nitrofurantoin