The occurrence of CTX-M-25-producing Enterobacteriaceae in day-old broiler chicks in Japan

Yossapol, Montira; Sugiyama, Michio; Asai, Tetsuo

doi:10.1292/jvms.17-0294

Cited by 12 publications

(14 citation statements)

References 22 publications

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“…The bla CTX-M-8 group was found in E. coli isolated from chicken meats in Brazil [36], humans in the United States [30] and gulls in Spain [52]. The bla CTX-M-25 group was reported from clinical samples in Israel [56] and broiler chickens in Japan [61]. In this study, we found the bla CTX-M-1 group in three ESBL-producing E. coli isolated from rodent feces.…”

Section: Discussionsupporting

confidence: 49%

Antibiotic-resistant <i>Escherichia coli</i> isolated from urban rodents in Hanoi, Vietnam

Huy

Koizumi

Ung

et al. 2020

The Journal of Veterinary Medical Science

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Antimicrobial resistance (AMR) is a global public health concern for both clinical and veterinary medicine. Rodent feces are one of the major infectious sources of zoonotic pathogens including AMR bacteria. So far, there are limited studies reported focused on Escherichia coli isolated in rodent feces from rural and suburban areas in Vietnam. In this study, we investigated the prevalence of antimicrobial resistance in E. coli isolated from feces samples of 144 urban rodents caught in Hanoi, Vietnam. A total of 59 AMR E. coli was isolated from urban rodents of which 42 were multidrug-resistant (MDR) isolates (resistance to at least three classes of antimicrobial agents), four were extended-spectrum β-lactamase (ESBL) producing isolates and five were colistin-resistant isolates. The highest prevalence of the resistance was against

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Section: Discussionsupporting

confidence: 49%

Antibiotic-resistant <i>Escherichia coli</i> isolated from urban rodents in Hanoi, Vietnam

Huy

Koizumi

Ung

et al. 2020

The Journal of Veterinary Medical Science

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“…Resistance against antimicrobials leads to limited therapeutic options, resulting in increasing difficulties of treatments. In contrast to ESBL- producing E. coli which have become very common in veterinary medicine, especially in livestock, companion animals and wildlife, ESBL-producing K. pneumoniae were detected rarely in healthy broiler (Hiroi et al, 2012 ; Yossapol et al, 2017 ; Mahanti et al, 2018 ), diseased horses (Vo et al, 2007 ) dairy cows (Locatelli et al, 2010 ) and in companion animals (Ewers et al, 2014 ).…”

Section: Introductionmentioning

confidence: 99%

ESBL-Producing Klebsiella pneumoniae in the Broiler Production Chain and the First Description of ST3128

et al. 2018

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ESBL-producing Klebsiella pneumoniae (K. pneumoniae) represent an increasing problem both in human and veterinary medicine. As SHV-2 - encoding K. pneumoniae were recently detected in the broiler production we were interested in investigating a possible transmission along the broiler production chain and furthermore, in evaluating their possible impact on human health. Therefore, 41 ESBL-producing K. pneumoniae originating from a parent flock, from the hatcherys' environment during the hatching of that parent flocks' chickens, and from an associated fattening flock were investigated on an Illumina Miseq. Whole genome sequences were analyzed concerning their MLST-type, cgMLST-type, genotypic and phenotypic resistance, plasmid profiles and virulence genes. Irrespective of the origin of isolation all investigated isolates were multi-drug resistant, harbored the same ESBL-gene blaSHV−2, shared the same sequence type (ST3128) and displayed 100% similarity in core genome multilocus sequence typing (cgMLST). In addition, in silico plasmid typing found several Inc/Rep types associated with ESBL-plasmids. Summarizing, identical clones of SHV-2—producing K. pneumoniae were detected in different stages of the industrial broiler production in one out of seven investigated broiler chains. This proves the possibility of pseudo-vertical transmission of multi-resistant human pathogens from parent flocks to hatcheries and fattening flocks. Furthermore, the importance of cross-contamination along the production chain was shown. Although the ESBL-producing K. pneumoniae clone detected here in the broiler production has not been associated with clinical settings so far, our findings present a potential public health threat.

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“…[2][3][4] In our previous study, CTX-M-25-producing Enterobacteriaceae were isolated from day-old chicks on the date of arrival at the farm. 5 In another previous study, CTX-M-3producing Enterobacteriaceae were isolated from the same broilers at different ages within a flock, suggesting that AMR bacteria persist in birds throughout their entire life. 6 Based on these results, the transfer of CTX-M-type extended-spectrum β-lactamase (ESBL) plasmids among Enterobacteriaceae may be associated with the persistence of CTX-M-producing bacteria in broiler farms.…”

Section: Introductionmentioning

confidence: 81%

Persistence of extended‐spectrum β‐lactamase plasmids among Enterobacteriaceae in commercial broiler farms

Yossapol

Suzuki

Odoi

et al. 2020

Microbiology and Immunology

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To clarify the persistence of extended-spectrum β-lactamase (ESBL) producers, 13 plasmids from two broiler farms were analyzed. On the farm not using antimicrobials, one plasmid from Klebsiella pneumoniae isolated from a day-old chick was similar to that from Escherichia coli isolated a year later, with the deletion of two transposons. On the farm using antimicrobials, most circulating plasmids (eight out of nine) in a flock of 40-days-old chicks were identical, although one from K. pneumoniae had a deletion of a transposon carrying a class 1 integron containing aadA2 and dfrA12. Thus, ESBL plasmids persisted in the farms with or without antimicrobial agent use.

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The occurrence of CTX-M-25-producing Enterobacteriaceae in day-old broiler chicks in Japan

Cited by 12 publications

References 22 publications

Antibiotic-resistant <i>Escherichia coli</i> isolated from urban rodents in Hanoi, Vietnam

Antibiotic-resistant <i>Escherichia coli</i> isolated from urban rodents in Hanoi, Vietnam

ESBL-Producing Klebsiella pneumoniae in the Broiler Production Chain and the First Description of ST3128

Persistence of extended‐spectrum β‐lactamase plasmids among Enterobacteriaceae in commercial broiler farms

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