Abstract

Wastewater serves as a reservoir for antimicrobial-resistant bacteria. This study revealed the presence of carbapenem-resistant and carbapenemase-producing Gram-negative bacilli (GNB), established clonal relationships among isolates in hospital and municipal wastewater, and identified a high-risk clone in municipal wastewater. A total of 63 isolates of GNB were obtained, with Enterobacterales being the most frequently isolated group (62%). Carbapenemase-producing Lelliottia amnigena, Kluyvera cryocrescens, and Shewanella putrefaciens isolates were documented for the first time in Mexico. The detectableted carbapenemase genes were blaKPC (55%), blaNDM (12%), blaVIM−2 (12%), blaOXA−48 (4%), blaGES (2%), blaNDM−1 (2%), and blaNDM−5 (2%). Clonal relationships were observed among Klebsiella pneumoniae and Enterobacter spp. isolates, and remarkably the high-risk clone Escherichia coli ST361, carrying blaNDM−5, was identified. This study demonstrates that wastewater harbours carbapenem-resistant and carbapenemase-producing bacteria, posing a public health threat that requires epidemiological surveillance.

Details

Title
Detection of carbapenemases in Enterobacterales and other Gram-negative bacilli recovered from hospital and municipal wastewater in Mexico City
Author
Urzua-Abad, Maria Magdalena 1 ; Aquino-Andrade, Alejandra 2 ; Castelan-Vega, Juan Arturo 3 ; Merida-Vieyra, Jocelin 2 ; Ribas-Aparicio, Rosa Maria 3 ; Belmont-Monroy, Laura 2 ; Jimenez-Alberto, Alicia 3 ; Aparicio-Ozores, Gerardo 3 

 Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Departamento de Microbiología, Mexico City, Mexico (GRID:grid.418275.d) (ISNI:0000 0001 2165 8782); Instituto Nacional de Pediatria, Laboratorio de Microbiologia Molecular, Mexico City, Mexico (GRID:grid.419216.9) (ISNI:0000 0004 1773 4473) 
 Instituto Nacional de Pediatria, Laboratorio de Microbiologia Molecular, Mexico City, Mexico (GRID:grid.419216.9) (ISNI:0000 0004 1773 4473) 
 Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Departamento de Microbiología, Mexico City, Mexico (GRID:grid.418275.d) (ISNI:0000 0001 2165 8782) 
Pages
26576
Publication year
2024
Publication date
2024
Publisher
Nature Publishing Group
e-ISSN
20452322
Source type
Scholarly Journal
Language of publication
English
ProQuest document ID
3123927778
Copyright
© The Author(s) 2024. This work is published under http://creativecommons.org/licenses/by-nc-nd/4.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.