Activity of β-Lactam Antibiotics against Metallo-β-Lactamase-Producing Enterobacterales in Animal Infection Models: a Current State of Affairs

Author:

Asempa Tomefa E.1ORCID,Abdelraouf Kamilia1ORCID,Nicolau David P.12ORCID

Affiliation:

1. Center for Anti-Infective Research and Development, Hartford Hospital, Hartford, Connecticut, USA

2. Division of Infectious Diseases, Hartford Hospital, Hartford, Connecticut, USA

Abstract

Metallo-β-lactamases (MBLs) result in resistance to nearly all β-lactam antimicrobial agents, as determined by currently employed susceptibility testing methods. However, recently reported data demonstrate that variable and supraphysiologic zinc concentrations in conventional susceptibility testing media compared with physiologic (bioactive) zinc concentrations may be mediating discordant in vitro - in vivo MBL resistance.

Publisher

American Society for Microbiology

Subject

Infectious Diseases,Pharmacology (medical),Pharmacology

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