CTX-M, SHV, TEM and VEB β-lactamases, and MCR-1 among multidrug-resistant Escherichia coli and Klebsiella isolates from environment near animal farms in Thailand

Background: Currently, antimicrobial agents are widely used in both animals and agriculture, causing the crisis of multidrug-resistant (MDR) bacteria. In this study we surveyed for 4 important antimicrobial-resistant bacteria: extended-spectrum β-lactamase (ESBL)-producing Escherichia coli, Klebsiel...

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Main Authors: Arpasiri Srisrattakarn, Bhanubong Saiboonjan, Patcharaporn Tippayawat, Sunpetch Angkititrakul, Aroonwadee Chanawong, Chanakan Pornchoo, Chokdee Smithkittipol, Aroonlug Lulitanond
Format: Article
Language:English
Published: Elsevier 2025-02-01
Series:Journal of Infection and Public Health
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Online Access:http://www.sciencedirect.com/science/article/pii/S1876034124003587
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author Arpasiri Srisrattakarn
Bhanubong Saiboonjan
Patcharaporn Tippayawat
Sunpetch Angkititrakul
Aroonwadee Chanawong
Chanakan Pornchoo
Chokdee Smithkittipol
Aroonlug Lulitanond
author_facet Arpasiri Srisrattakarn
Bhanubong Saiboonjan
Patcharaporn Tippayawat
Sunpetch Angkititrakul
Aroonwadee Chanawong
Chanakan Pornchoo
Chokdee Smithkittipol
Aroonlug Lulitanond
author_sort Arpasiri Srisrattakarn
collection DOAJ
description Background: Currently, antimicrobial agents are widely used in both animals and agriculture, causing the crisis of multidrug-resistant (MDR) bacteria. In this study we surveyed for 4 important antimicrobial-resistant bacteria: extended-spectrum β-lactamase (ESBL)-producing Escherichia coli, Klebsiella pneumoniae and Salmonella spp., and methicillin-resistant Staphylococcus aureus (MRSA) from the environment around chicken and pig farms. Methods: Forty-four soils, 44 water and 15 bootstrap samples were collected from upstream and downstream of the riverside close to 22 animal farms in 2020 (9 farms) and 2023 (13 farms). The samples were cultured in appropriate media and isolated colonies were further identified. Antimicrobial susceptibility and ESBL production were tested by disk diffusion method except for colistin susceptibility determined by broth disk elution test. Common resistance genes were tested by polymerase chain reaction (PCR) methods. Results: A total of 123 E. coli (n = 59) and Klebsiella species (n = 64) were identified and 25 isolates of them were MDR; 21 and 4 isolates from the downstream and upstream areas respectively. In addition, 13 isolates were ESBL producers, of which 12 isolates were from the downstream area. The most common ESBL gene among both organisms was blaCTX-M, whereas colistin resistance gene, mcr-1, was found in 2 E. coli isolates. Salmonella spp. and MRSA were not isolated from any sample. Conclusions: Antimicrobial-resistant bacteria were found in the environment around the animal farms especially from the downstream area, suggesting the urgent need of judicious use of antimicrobial agents in animal farms.
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spelling doaj-art-326a6644dfa9477186f2430550a4abcc2025-01-21T04:12:55ZengElsevierJournal of Infection and Public Health1876-03412025-02-01182102624CTX-M, SHV, TEM and VEB β-lactamases, and MCR-1 among multidrug-resistant Escherichia coli and Klebsiella isolates from environment near animal farms in ThailandArpasiri Srisrattakarn0Bhanubong Saiboonjan1Patcharaporn Tippayawat2Sunpetch Angkititrakul3Aroonwadee Chanawong4Chanakan Pornchoo5Chokdee Smithkittipol6Aroonlug Lulitanond7Centre for Research and Development of Medical Diagnostic Laboratories, Faculty of Associated Medical Sciences, Khon Kaen University, Khon Kaen 40002, ThailandCenter for Innovation and Standard for Medical Technology and Physical Therapy, Faculty of Associated Medical Sciences, Khon Kaen University, Khon Kaen 40002, ThailandCentre for Research and Development of Medical Diagnostic Laboratories, Faculty of Associated Medical Sciences, Khon Kaen University, Khon Kaen 40002, ThailandDivision of Veterinary Public Health, Faculty of Veterinary Medicine, Khon Kaen University, Khon Kaen 40002, ThailandCentre for Research and Development of Medical Diagnostic Laboratories, Faculty of Associated Medical Sciences, Khon Kaen University, Khon Kaen 40002, ThailandCentre for Research and Development of Medical Diagnostic Laboratories, Faculty of Associated Medical Sciences, Khon Kaen University, Khon Kaen 40002, ThailandFood System, World Animal Protection (Thailand), ThailandCentre for Research and Development of Medical Diagnostic Laboratories, Faculty of Associated Medical Sciences, Khon Kaen University, Khon Kaen 40002, Thailand; Corresponding author.Background: Currently, antimicrobial agents are widely used in both animals and agriculture, causing the crisis of multidrug-resistant (MDR) bacteria. In this study we surveyed for 4 important antimicrobial-resistant bacteria: extended-spectrum β-lactamase (ESBL)-producing Escherichia coli, Klebsiella pneumoniae and Salmonella spp., and methicillin-resistant Staphylococcus aureus (MRSA) from the environment around chicken and pig farms. Methods: Forty-four soils, 44 water and 15 bootstrap samples were collected from upstream and downstream of the riverside close to 22 animal farms in 2020 (9 farms) and 2023 (13 farms). The samples were cultured in appropriate media and isolated colonies were further identified. Antimicrobial susceptibility and ESBL production were tested by disk diffusion method except for colistin susceptibility determined by broth disk elution test. Common resistance genes were tested by polymerase chain reaction (PCR) methods. Results: A total of 123 E. coli (n = 59) and Klebsiella species (n = 64) were identified and 25 isolates of them were MDR; 21 and 4 isolates from the downstream and upstream areas respectively. In addition, 13 isolates were ESBL producers, of which 12 isolates were from the downstream area. The most common ESBL gene among both organisms was blaCTX-M, whereas colistin resistance gene, mcr-1, was found in 2 E. coli isolates. Salmonella spp. and MRSA were not isolated from any sample. Conclusions: Antimicrobial-resistant bacteria were found in the environment around the animal farms especially from the downstream area, suggesting the urgent need of judicious use of antimicrobial agents in animal farms.http://www.sciencedirect.com/science/article/pii/S1876034124003587Chicken and pig farmsDownstreamEnvironmentMultidrug-resistant (MDR) bacteriaUpstream
spellingShingle Arpasiri Srisrattakarn
Bhanubong Saiboonjan
Patcharaporn Tippayawat
Sunpetch Angkititrakul
Aroonwadee Chanawong
Chanakan Pornchoo
Chokdee Smithkittipol
Aroonlug Lulitanond
CTX-M, SHV, TEM and VEB β-lactamases, and MCR-1 among multidrug-resistant Escherichia coli and Klebsiella isolates from environment near animal farms in Thailand
Journal of Infection and Public Health
Chicken and pig farms
Downstream
Environment
Multidrug-resistant (MDR) bacteria
Upstream
title CTX-M, SHV, TEM and VEB β-lactamases, and MCR-1 among multidrug-resistant Escherichia coli and Klebsiella isolates from environment near animal farms in Thailand
title_full CTX-M, SHV, TEM and VEB β-lactamases, and MCR-1 among multidrug-resistant Escherichia coli and Klebsiella isolates from environment near animal farms in Thailand
title_fullStr CTX-M, SHV, TEM and VEB β-lactamases, and MCR-1 among multidrug-resistant Escherichia coli and Klebsiella isolates from environment near animal farms in Thailand
title_full_unstemmed CTX-M, SHV, TEM and VEB β-lactamases, and MCR-1 among multidrug-resistant Escherichia coli and Klebsiella isolates from environment near animal farms in Thailand
title_short CTX-M, SHV, TEM and VEB β-lactamases, and MCR-1 among multidrug-resistant Escherichia coli and Klebsiella isolates from environment near animal farms in Thailand
title_sort ctx m shv tem and veb β lactamases and mcr 1 among multidrug resistant escherichia coli and klebsiella isolates from environment near animal farms in thailand
topic Chicken and pig farms
Downstream
Environment
Multidrug-resistant (MDR) bacteria
Upstream
url http://www.sciencedirect.com/science/article/pii/S1876034124003587
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