Sandra Martínez-Álvarez, Pierre Châtre, Pauline François, Idris Nasir Abdullahi, Carmen Simón, Myriam Zarazaga, Jean-Yves Madec, Marisa Haenni, Carmen Torres
The presence of methicillin-resistant or -susceptible S. aureus in pig nostrils has been known for a long time, but the occurrence of extended-spectrum beta-lactamase (ESBL)-producing E. coli has hardly been investigated. Here, we collected 25 E. coli recovered from nasal samples of 40 pigs/10 farmers of four farms. Nine ESBL-producing isolates belonging to ST48, ST117, ST847, ST5440, ST14914 and ST10 were retrieved from seven pigs. All blaESBL genes (blaCTX-M-32, blaCTX-M-14, blaCTX-M-1, blaCTX-M-65, and blaSHV-12 ) were horizontally transferable by conjugation through plasmids belonging to IncI1 (n=3), IncX1 (n=3) and IncHI2 (n=1) types...
March 8, 2024: Ecotoxicology and Environmental Safety