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Extended Spectrum β-Lactamase-Producing <i>Escherichia coli</i> from Poultry and Wild Birds (Sparrow) in Djelfa (Algeria), with Frequent Detection of CTX-M-14 in Sparrow

Antimicrobial resistance is a global threat that is spreading more and more in both human and animal niches. This study investigates the antimicrobial resistance and virulence threats of <i>Escherichia coli</i> isolates recovered from intestinal and fecal samples of 100 chickens, 60 turk...

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Main Authors: Mohamed Belmahdi (Author), Nadia Safia Chenouf (Author), Abdelkrim Ait Belkacem (Author), Sandra Martinez-Alvarez (Author), Mario Sergio Pino-Hurtado (Author), Zahra Benkhechiba (Author), Samiha Lahrech (Author), Ahcène Hakem (Author), Carmen Torres (Author)
Format: Book
Published: MDPI AG, 2022-12-01T00:00:00Z.
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Summary:Antimicrobial resistance is a global threat that is spreading more and more in both human and animal niches. This study investigates the antimicrobial resistance and virulence threats of <i>Escherichia coli</i> isolates recovered from intestinal and fecal samples of 100 chickens, 60 turkeys, and 30 sparrows. Extended spectrum β-lactamase (ESBL) producing <i>E. coli</i> isolates were recovered in 12 of the animals tested, selecting one isolate per positive animal: sparrow (eight isolates, 26.7%), turkey (three isolates, 5%), and chicken (one isolate, 1%). The <i>E. coli</i> isolates were ascribed to B1 and D phylogenetic groups. The <i>bla</i><sub>CTX-M-14</sub> gene was detected in all ESBL-producing <i>E. coli</i> isolates from sparrow. The <i>bla</i><sub>CTX-M-15</sub> (two isolates) and <i>bla</i><sub>CTX-M-14</sub> genes (one isolate) were detected in the isolates of turkey, and the <i>bla</i><sub>CTX-M-1</sub> gene in one isolate from broiler. Three lineages were revealed among the tested isolates (ST/phylogenetic group/type of ESBL/origin): ST117/D/CTX-M-1/broiler, ST4492 (CC405)/D/CTX-M-15/turkey, and ST602/B1/CTX-M-14/sparrow. All isolates were negative for <i>stx1, sxt2</i>, and <i>eae</i> virulence genes. Our findings provide evidence that the sparrow could be a vector in the dissemination of ESBL-producing <i>E. coli</i> isolates to other environments. This study also reports, to our knowledge, the first detection of <i>bla</i><sub>CTX-M-14</sub> from sparrow at a global level and in turkey in Algeria.
Item Description:10.3390/antibiotics11121814
2079-6382

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