Antimicrobial resistance and co-selection phenomenon in Listeria spp. recovered from food and food production environments
Jovana Kovacevic , Jason Sagert , Anna Woźniak-Biel , Matthew W. Gilmour , Kevin J. Allen
AbstractAntimicrobial resistance (AMR), co-selection phenomenon, and the relationship between reduced susceptibility (RSC) to ciprofloxacin (CIP) and resistance to other antimicrobials in Listeria spp. (n = 103) recovered from food processing environments (FPE) and food were investigated. Resistance of Listeria monocytogenes and other listeriae, respectively, to cefoxitin (FOX; 98% vs. 88%), CIP (7% vs. 4%), clindamycin (CLI; 33% vs. 59%) and tetracycline (6% vs. 8%) was observed, as was RSC to CIP (67% vs. 57%) and CLI (65% vs. 41%). L. monocytogenes also possessed RSC to linezolid (LZD; 6%), rifampicin (2%) and streptomycin (6%), with other listeriae displaying RSC to chloramphenicol (4%). L. monocytogenes serotype 1/2a (90%) isolates were more frequently resistant or possessed RSC to CIP compared to serotype 4b (55%) (p = 0.015). When eight strains were experimentally adapted to high concentrations of CIP, co-selection occurred as MICs to benzalkonium chloride (BAC) increased (n = 5), gentamicin MICs remained the same (n = 6) or increased 2-fold (n = 2), and led to RSC to LZD (n = 1) and resistance to CLI (n = 8). Overall, levels of resistance/RSC to CIP in food chain isolates, particularly 1/2a, are concerning. Further, reduced sensitivity to disparate antimicrobials following CIP exposure highlights the need for increased knowledge of co-selection phenomenon linked with antimicrobial agents. © 2013 Elsevier Ltd.
|Journal series||Food Microbiology, ISSN 0740-0020, (A 40 pkt)|
|Publication size in sheets||0.5|
|Keywords in English||Listeria spp; Listeria monocytogenes; Antimicrobial resistance; Efflux pump; Co-selection; Cross-resistance|
|ASJC Classification||; ;|
|Score|| = 40.0, 09-07-2020, ArticleFromJournal|
= 40.0, 09-07-2020, ArticleFromJournal
|Publication indicators||= 29; = 27; : 2013 = 1.838; : 2013 = 3.374 (2) - 2013=3.713 (5)|
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