Frequency, Antimicrobial Susceptibility, and Molecular Characterization of Carbapenem-Resistant Enterobacterales Stratified by United States Census Divisions: Results From the INFORM Program (2018-2022).

ABSTRACT:

Background

Recently approved β-lactamase inhibitor combinations, such as ceftazidime-avibactam, meropenem-vaborbactam, and imipenem-relebactam, have demonstrated a broad spectrum of activity against carbapenem-resistant Enterobacterales (CRE) from US hospitals, but resistance may emerge with the increasing use of these compounds. Aztreonam-avibactam was recently approved in Europe and it is under clinical development in the United States. We evaluated the activity of aztreonam-avibactam and comparators against CREs from US hospitals.

Methods

A total of 45 497 Enterobacterales isolates were consecutively collected from 79 US medical centers (36 states) and susceptibility tested by broth microdilution. Aztreonam-avibactam was tested with avibactam at a fixed 4 mg/L and a susce

SUBMITTER: Sader HS 

PROVIDER: S-EPMC11986335 | biostudies-literature | 2025 Apr

REPOSITORIES: biostudies-literature