Antimicrobial resistance observed in Escherichia coli strains isolated from fecal samples of cattle and pigs in Korea during 2003–2004

Lim, Suk-Kyung; Lee, Heesoo; Nam, Hyang-Mi; Cho, Yun Sang; Kim, Jong-Man; Song, Si-Wook; Park, Taesung; Jung, Suk-Chan

doi:10.1016/j.ijfoodmicro.2006.12.014

Cited by 64 publications

(67 citation statements)

References 20 publications

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“…E. coli isolates from diarrheic cattle showed a high prevalence of resistance to antimicrobials commonly used in livestock, such as tetracycline (TET), streptomycin (STR), and ampicillin (AMP). The tendency of resistance in diarrheic cattle observed in this study was similar to that in healthy cattle reported from Korea [12], although the prevalence of resistance to each antimicrobial in the former was much higher than in the latter. The frequency of FQ resistance in E. coli in this study was also marked higher than that in a previous study on healthy cattle during the same period as this study in Korea [12].…”

supporting

confidence: 84%

“…The tendency of resistance in diarrheic cattle observed in this study was similar to that in healthy cattle reported from Korea [12], although the prevalence of resistance to each antimicrobial in the former was much higher than in the latter. The frequency of FQ resistance in E. coli in this study was also marked higher than that in a previous study on healthy cattle during the same period as this study in Korea [12]. Several investigators have also described higher rates of resistance to quinolones in E. coli isolates from sick animals than those from healthy animals [7,16].…”

supporting

confidence: 84%

“…High frequencies of antimicrobial resistance in livestock, especially in poultry and swine, have also been reported in Korea [12]. Since there is no veterinary prescription regulation, indiscriminate and indiscreet use of antimicrobials has been a common practice in this country.…”

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confidence: 99%

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Prevalence and Molecular Characterization of Fluoroquinolone-Resistant Escherichia coli Isolated from Diarrheic Cattle in Korea

Lim

Lee

et al. 2010

The Journal of Veterinary Medical Science

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ABSTRACT. A total of 176 E. coli isolates were retrieved from 203 diarrheic fecal samples collected from Korean cattle on 117 different farms. The most frequently observed resistance in E. coli isolates was to tetracycline (88.6%), followed by streptomycin (80.7%) and ampicillin (64.8%). Resistance to cefazolin, cefoperazone, cefepime and amikacin was very low. Of the 176 E. coli strains, forty (22.7%) isolates from 30 farms showed resistance to fluoroquinolones (FQ). All the FQ-resistant strains possessed double mutations at codons 83 and 87 in the gyrA gene, and a single mutation mostly at codon 80 in the parC gene, except in one isolate. The pulsed-field gel electrophoresis profiles of the FQ-resistant E. coli isolates were heterogeneous, but two or three isolates that showed an identical pattern originated from the same or different farms. This study demonstrates that FQ resistance is frequently observed in E. coli from diarrheic cattle and that mutations in the quinolone resistance-determining region are the same as those seen in E. coli originating from other animal species and humans. The FQ resistance in diarrheic cattle might have been mostly acquired independently, although the possibility of transmission of FQ-resistant E. coli within a farm or between farms is plausible.

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confidence: 84%

supporting

confidence: 84%

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Prevalence and Molecular Characterization of Fluoroquinolone-Resistant Escherichia coli Isolated from Diarrheic Cattle in Korea

Lim

Lee

et al. 2010

The Journal of Veterinary Medical Science

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“…E. coli isolates from diarrheic pigs in Korea [16] had a higher frequency of resistance to tetracycline (97.1%) and streptomycin (99%), while the rate of resistance to ampicillin (27.1%) was comparable to our investigation. A moderate to high level resistance to these antibacterial agents was also reported for E. coli strains isolated from feces of healthy dogs [5], cattle and pigs [20,25].…”

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The <i>In Vitro</i> Activity of 15 Antimicrobial Agents against Bacterial Isolates from Dogs

et al. 2012

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ABSTRACT. The in vitro activity of 15 antimicrobial agents against clinical isolates of Staphylococcus pseudintermedius, Staphylococcus aureus, Escherichia coli, Pasteurella spp. and Streptococcus canis from dogs was investigated. For Staphylococcus spp., the highest frequency of resistance was observed for penicillin, followed by ampicillin, tetracycline and chloramphenicol. The highest frequency of resistance in E. coli isolates was recorded for tetracycline and streptomycin. Pasteurella spp. and S. canis had the highest resistance rate for tetracycline and chloramphenicol. Most isolates showed full susceptibility to low-level resistance to colistin, florfenicol and fluoroquinolones. Further studies using larger number of isolates from both healthy and diseased dogs would provide a broader picture of antimicrobial resistance at a national level and promote prudent use of antimicrobial agents in companion animals. Antibacterial drug resistance continues to increase worldwide, with some pathogenic bacteria exhibiting resistance to virtually all available drugs [29]. While there are considerable, though often fragmented, data on the quantities of antimicrobial drug use and resistance in bacteria of food animal origin, useful data on antimicrobial drug use and resistance in companion animals are relatively scarce [22,24]. The most frequent bacterial infections in dogs include skin, ear, wound, gastrointestinal and urinary tract infections. Staphylococcus pseudintermedius, Escherichia coli, Pseudomonas aeruginosa, Streptococcus spp. and Proteus spp. are among the most frequently encountered bacterial pathogens in companion animal veterinary practice. The antimicrobial drug susceptibilities of canine isolates have been reported [1,7,9,23], most of which have also zoonotic significance. S. pseudintermedius is the principal cause of pyoderma and otitis in canine [24]. Although it had been misidentified for decades as S. intermedius, recent analyses by molecular phylogenetic and PCR-restriction fragment length polymorphism (PCR-RFLP) approaches indicated that S. pseudintermedius, not S. intermedius, is the major canine pyoderma pathogen [6,23,25], and it has already been proposed that all strains from dogs identified by traditional means be reported as S. pseudintermedius [6,11]. Increasing resistance of this organism and failures to treat canine pyoderma or otitis with a number of antibacterial agents, including fluoroquinolones were reported recently [6,30]. Furthermore, cross-resistance between fluoroquinolones and other antibacterial agents and zoonotic transmission of both meticillin-susceptible and meticillin-resistant S. pseudintermedius between dogs and humans have been concerns recently [30,31]. Resistance in canine E. coli isolates to a wide range of antimicrobial agents, including fluoroquinolones, is increasingly reported [2]. Furthermore, the chemical and structural similarities between veterinary and human-use drugs and the close phylogenetic relationships between E. coli isolates from dogs and man have r...

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“…Though recent reports have shown increased consumption of florfenicol in farms, no reports are available on the prevalence of florfenicol resistance among microbes of enteric origin from South Korean farms (10,12,19). Past work on florfenicol resistance has reported a wide range of MICs for florfenicol for E. coli animal isolates, with and without the floR gene (12,14,17,18).…”

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confidence: 99%

Inter- and Intraspecies Plasmid-Mediated Transfer of Florfenicol Resistance in Enterobacteriaceae Isolates from Swine

Rayamajhi

Bin

Kang

et al. 2009

Appl Environ Microbiol

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Antimicrobial resistance observed in Escherichia coli strains isolated from fecal samples of cattle and pigs in Korea during 2003–2004

Cited by 64 publications

References 20 publications

Prevalence and Molecular Characterization of Fluoroquinolone-Resistant Escherichia coli Isolated from Diarrheic Cattle in Korea

Prevalence and Molecular Characterization of Fluoroquinolone-Resistant Escherichia coli Isolated from Diarrheic Cattle in Korea

The <i>In Vitro</i> Activity of 15 Antimicrobial Agents against Bacterial Isolates from Dogs

Inter- and Intraspecies Plasmid-Mediated Transfer of Florfenicol Resistance in Enterobacteriaceae Isolates from Swine

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