Concern levels of beta-lactamase-producing Gram-negative bacilli in hospital wastewater: hotspot of antimicrobial resistance in Latin-America

Elsevier

Available online 21 September 2022, 115819

Diagnostic Microbiology and Infectious DiseaseHighlights•

High levels of beta-lactamase-producers in hospital WW with and without treatment.

The most frequent beta-lactamase-producing GNB were C. freundii and E. coli

The beta-lactamase-producing GNB showed a high diversity of MDR profiles.

Hospital WW could influence the dissemination of antimicrobial resistance.

Importance of regulating hospital wastewater in developing countries.

Abstract

Hospital wastewater (HWW) discharges are among the main sources of antibiotic-resistant bacteria. This study detected a high frequency of beta-lactamase-producing Gram-negative Bacilli in HWW of different geographical regions of Colombia, even in the presence of the wastewater treatment plant, highlighting the importance of regulating these environments in developing countries.

Keywords

Antimicrobial resistance

hospital wastewater

multidrug-resistant

beta-lactamases

carbapenemases

© 2022 The Author(s). Published by Elsevier Inc.

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