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Ventura M, Oporto-Llerena R, Espinoza K, Guibert F, Quispe AM, Vilar N, López M, Rojo-Bezares B, Sáenz Y, Ruiz J, J. Pons M. Antimicrobial resistance and associated risk factors in Escherichia coli isolated from Peruvian dogs: A focus on extended-spectrum β-lactamases and colistin. Vet World 2024; 17:880-887. [PMID: 38798292 PMCID: PMC11111722 DOI: 10.14202/vetworld.2024.880-887] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2023] [Accepted: 03/26/2024] [Indexed: 05/29/2024] Open
Abstract
Background and Aim Established antimicrobial resistance (AMR) surveillance in companion animals is lacking, particularly in low-middle-income countries. The aim of this study was to analyze AMR and its risk factors in Escherichia coli isolated from dogs at two veterinary centers in Lima (Peru). Materials and Methods Ninety dogs were included in the study. Antimicrobial susceptibility was established by disk diffusion, whereas microdilution was used to determine colistin susceptibility. Mechanisms related to extended-spectrum β-lactamases (ESBL) and colistin resistance were determined by polymerase chain reaction. Clonal relationships of colistin-resistant isolates were assessed by XbaI-pulsed-field gel electrophoresis. Results Thirty-five E. coli strains were isolated. High levels of resistance to ampicillin (57.1%), nalidixic acid (54.3%), tetracycline (48.6%), and azithromycin (25.7%) were detected. Cephalosporin resistance levels were ≥20% and those for colistin were 14.3%. Twelve (34.2%) isolates were ESBL producers; of these, six blaCTX-M-55 (50.0%), 2 (16.6%) blaCTX-M-15, and 2 (16.6%) blaCTX-M-8-like genes were found. The five colistin-resistant isolates were clonally unrelated, with four of them presenting amino acid codon substitutions in the mgrB gene (V8A) or mutations in the mgrB promoter (a12g, g98t, and c89t). Furthermore, dog age, <6 years (p = 0.027) and raw diet (p = 0.054) were associated with resistance to a greater number of antibiotic families. Conclusion Despite small number of samples included, the study found that dogs studied were carriers of multidrug-resistant E. coli, including last-resort antimicrobials, representing a public health problem due to close contact between dogs and humans. This issue suggests the need for larger studies addressed to design strategies to prevent the spread of resistant micro-organisms in small animal clinics and domestic settings.
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Affiliation(s)
- Margot Ventura
- Grupo de Investigación en Dinámicas y Epidemiología de la Resistencia a Antimicrobianos - ”One Health”, Universidad Científica del Sur, Lima, Peru
| | | | - Kathya Espinoza
- Grupo de Investigación en Dinámicas y Epidemiología de la Resistencia a Antimicrobianos - ”One Health”, Universidad Científica del Sur, Lima, Peru
| | - Fernando Guibert
- Grupo de Investigación en Dinámicas y Epidemiología de la Resistencia a Antimicrobianos - ”One Health”, Universidad Científica del Sur, Lima, Peru
| | | | - Nidia Vilar
- Área de Microbiología Molecular, Centro de Investigación Biomédica de La Rioja (CIBIR), 26006 Logroño, Spain
| | - María López
- Área de Microbiología Molecular, Centro de Investigación Biomédica de La Rioja (CIBIR), 26006 Logroño, Spain
| | - Beatriz Rojo-Bezares
- Área de Microbiología Molecular, Centro de Investigación Biomédica de La Rioja (CIBIR), 26006 Logroño, Spain
| | - Yolanda Sáenz
- Área de Microbiología Molecular, Centro de Investigación Biomédica de La Rioja (CIBIR), 26006 Logroño, Spain
| | - Joaquim Ruiz
- Grupo de Investigación en Dinámicas y Epidemiología de la Resistencia a Antimicrobianos - ”One Health”, Universidad Científica del Sur, Lima, Peru
| | - Maria J. Pons
- Grupo de Investigación en Dinámicas y Epidemiología de la Resistencia a Antimicrobianos - ”One Health”, Universidad Científica del Sur, Lima, Peru
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Wei X, Wang W, Lu N, Wu L, Dong Z, Li B, Zhou X, Cheng F, Zhou K, Cheng H, Shi H, Zhang J. Prevalence of Multidrug-Resistant CTX-M Extended Spectrum Beta-Lactamase-Producing Escherichia coli From Different Bovine Faeces in China. Front Vet Sci 2022; 9:738904. [PMID: 35978707 PMCID: PMC9376260 DOI: 10.3389/fvets.2022.738904] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2021] [Accepted: 05/19/2022] [Indexed: 01/24/2023] Open
Abstract
CTX-M extended spectrum beta-lactamase-producing Escherichia coli cause severe health hazards in livestock breeding. To date, little is known about antibiotic resistance differences among bacterial isolates from yaks, cows, and beef cattle; therefore, the aims of this study were to analyse the prevalence of CTX-M-producing E. coli in yak, beef cattle, and dairy cattle feces from different provinces in China. A total of 790 fecal samples from yaks, beef cattle, and dairy cows were used. Among all the samples, 523 non duplicate E. coli isolates were identified, and 29.6% of samples harbored CTX-M producers. The results showed that these E. coli strains harbored 15 clusters of CTX-M genes: CTX-M-79, CTX-M-55, CTX-M-15, CTX-M-14, CTX-M-28, CTX-M-179, CTX-M-65, CTX-M-24, CTX-M-27, CTX-M-102, CTX-M-105, CTX-M-173, CTX-M-238, CTX-M-196, and CTX-M-10. The dominant resistance genes were CTX-M-15, CTX-M-14, and CTX-M-55. Moreover, the distribution of CTX-M genes was related to geographical region. Based on the above findings, we reasoned that bovines are potential reservoirs of antibiotic resistance, and this problem should be given adequate attention.
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Affiliation(s)
- Xiaojuan Wei
- Lanzhou Institute of Husbandry and Pharmaceutical Sciences of Chinese Academy of Agricultural Science (CAAS), Lanzhou, China,Key Laboratory of New Animal Drug Project of Gansu Province, Lanzhou, China,Key Laboratory of Veterinary Pharmaceutical Development, Ministry of Agriculture, Lanzhou, China
| | - Weiwei Wang
- Lanzhou Institute of Husbandry and Pharmaceutical Sciences of Chinese Academy of Agricultural Science (CAAS), Lanzhou, China,Key Laboratory of New Animal Drug Project of Gansu Province, Lanzhou, China,Key Laboratory of Veterinary Pharmaceutical Development, Ministry of Agriculture, Lanzhou, China
| | - Ningning Lu
- Lanzhou Institute of Husbandry and Pharmaceutical Sciences of Chinese Academy of Agricultural Science (CAAS), Lanzhou, China,Key Laboratory of New Animal Drug Project of Gansu Province, Lanzhou, China,Key Laboratory of Veterinary Pharmaceutical Development, Ministry of Agriculture, Lanzhou, China
| | - Lingyu Wu
- Lanzhou Institute of Husbandry and Pharmaceutical Sciences of Chinese Academy of Agricultural Science (CAAS), Lanzhou, China,Key Laboratory of New Animal Drug Project of Gansu Province, Lanzhou, China,Key Laboratory of Veterinary Pharmaceutical Development, Ministry of Agriculture, Lanzhou, China
| | - Zhen Dong
- Lanzhou Institute of Husbandry and Pharmaceutical Sciences of Chinese Academy of Agricultural Science (CAAS), Lanzhou, China,Key Laboratory of New Animal Drug Project of Gansu Province, Lanzhou, China,Key Laboratory of Veterinary Pharmaceutical Development, Ministry of Agriculture, Lanzhou, China
| | - Bing Li
- Lanzhou Institute of Husbandry and Pharmaceutical Sciences of Chinese Academy of Agricultural Science (CAAS), Lanzhou, China,Key Laboratory of New Animal Drug Project of Gansu Province, Lanzhou, China,Key Laboratory of Veterinary Pharmaceutical Development, Ministry of Agriculture, Lanzhou, China
| | - Xuzheng Zhou
- Lanzhou Institute of Husbandry and Pharmaceutical Sciences of Chinese Academy of Agricultural Science (CAAS), Lanzhou, China,Key Laboratory of New Animal Drug Project of Gansu Province, Lanzhou, China,Key Laboratory of Veterinary Pharmaceutical Development, Ministry of Agriculture, Lanzhou, China
| | - Fusheng Cheng
- Lanzhou Institute of Husbandry and Pharmaceutical Sciences of Chinese Academy of Agricultural Science (CAAS), Lanzhou, China,Key Laboratory of New Animal Drug Project of Gansu Province, Lanzhou, China,Key Laboratory of Veterinary Pharmaceutical Development, Ministry of Agriculture, Lanzhou, China
| | - Kairen Zhou
- Lanzhou Institute of Husbandry and Pharmaceutical Sciences of Chinese Academy of Agricultural Science (CAAS), Lanzhou, China,Key Laboratory of New Animal Drug Project of Gansu Province, Lanzhou, China,Key Laboratory of Veterinary Pharmaceutical Development, Ministry of Agriculture, Lanzhou, China
| | - Haijian Cheng
- Shandong Institute of Animal Science and Veterinary Medicine, Jinan, China
| | - Hongmei Shi
- Gannan Tibetan Autonomous Prefecture Institute of Animal Husbandry Science, Gannan, China
| | - Jiyu Zhang
- Lanzhou Institute of Husbandry and Pharmaceutical Sciences of Chinese Academy of Agricultural Science (CAAS), Lanzhou, China,Key Laboratory of New Animal Drug Project of Gansu Province, Lanzhou, China,Key Laboratory of Veterinary Pharmaceutical Development, Ministry of Agriculture, Lanzhou, China,*Correspondence: Jiyu Zhang
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Mengistu TS, Garcias B, Castellanos G, Seminati C, Molina-López RA, Darwich L. Occurrence of multidrug resistant Gram-negative bacteria and resistance genes in semi-aquatic wildlife - Trachemys scripta, Neovison vison and Lutra lutra - as sentinels of environmental health. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 830:154814. [PMID: 35341839 DOI: 10.1016/j.scitotenv.2022.154814] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/08/2021] [Revised: 03/20/2022] [Accepted: 03/21/2022] [Indexed: 06/14/2023]
Abstract
Emergence of antimicrobial resistance (AMR) in bacterial pathogens has been recognized as a major public health concern worldwide. In the present study, antimicrobial resistant Gram-negative bacteria (AMRGNB) and AMR genes were assessed in semi-aquatic wild animals from a highly populated and intensive farming region of Spain, Catalonia. Cloacal/rectal swab samples were collected from 241 animals coming from invasive species Trachemys scripta (n = 91) and Neovison vison (n = 131), and endangered-protected species Lutra lutra (n = 19). Accordingly, 133 (55.2%) isolates were identified as AMRGNB. Escherichia coli and Pseudomonas fluorescens were among the bacteria most frequently isolated in all animal species, but other nosocomial agents such as Klebsiella pneumoniae, Salmonella spp. or Citrobacter freundii, were also prevalent. The phenotypic susceptibility testing showed the highest resistance to β-lactams (91%). Molecular analysis showed 25.3% of turtles (15.4% ESBL/Ampc genes), 21% of Eurasian otters (10.5% ESBL/Ampc genes) and 14.5% of American minks (8.4% ESBL/Ampc genes) were positive to AMR genes. The genotyping frequency was tetM (20.6%), blaCMY-2 (13%), ermB (6.1%), blaCMY-1 (4.6%), blaCTX-M-15 (3.1%) and mcr-4 (0.8%). Turtles had a larger prevalence of AMRGNB and AMR genes than mustelids, but American mink carried mcr-4 colistin-resistance gene. Moreover, cluster analysis of AMR gene distribution revealed that an ESBL/AmpC cluster in a highly populated area comprising big metropolitan regions, and another tetM/emrB cluster in an expended area with highly intensive livestock production. Although the mcr-4 positive case was not included in those clusters, that case was found in a county with a high pig farm density. In conclusion, semi-aquatic wild animals are a good sentinel for environmental contamination with AMRGNB and AMR genes. Therefore, One Health Approach is urgently needed in highly populated regions, and with intensive livestock production like Catalonia.
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Affiliation(s)
| | - Biel Garcias
- Department Sanitat i Anatomia Animals, Veterinary Faculty, Universitat Autònoma de Barcelona (UAB), Cerdanyola del Vallès, CP 08193, Spain.
| | - Gabriela Castellanos
- Department Sanitat i Anatomia Animals, Veterinary Faculty, Universitat Autònoma de Barcelona (UAB), Cerdanyola del Vallès, CP 08193, Spain.
| | - Chiara Seminati
- Department Sanitat i Anatomia Animals, Veterinary Faculty, Universitat Autònoma de Barcelona (UAB), Cerdanyola del Vallès, CP 08193, Spain.
| | | | - Laila Darwich
- Department Sanitat i Anatomia Animals, Veterinary Faculty, Universitat Autònoma de Barcelona (UAB), Cerdanyola del Vallès, CP 08193, Spain.
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Phenotypic and Genetic Characterization of Klebsiella pneumoniae Isolates from Wild Animals in Central Italy. Animals (Basel) 2022; 12:ani12111347. [PMID: 35681810 PMCID: PMC9179660 DOI: 10.3390/ani12111347] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2022] [Revised: 05/23/2022] [Accepted: 05/24/2022] [Indexed: 11/16/2022] Open
Abstract
Despite Klebsiella pneumoniae being widely recognized as a nosocomial pathogen, there is a critical lack in defining its reservoirs and sources of infections. Most studies on risk factors have focused on multidrug-resistant (MDR) isolates and clinically-oriented questions. Over a two-year period, we sampled 131 wild animals including mammal and bird species from three regions of Central Italy. All typical colonies isolated from the analytical portions were confirmed by real-time PCR and identified by MALDI-TOF mass spectrometry (MALDI-TOF MS). All confirmed K. pneumoniae isolates were tested for antimicrobial susceptibility to 29 antimicrobials and subjected to whole genome sequencing. Typical colonies were detected in 17 samples (13%), which were identified as K. pneumoniae (n = 16) and as K. quasipneumoniae (n = 1) by MALDI-TOF MS. The antimicrobial susceptibility profile showed that all the isolates were resistant to β-lactams (ceftobiprole, cloxacillin, cefazolin) and tetracycline; resistance to ertapenem and trimethoprim was observed and nine out of 16 K. pneumoniae isolates (56.2%) were classified as MDR. Genomic characterization allowed the detection of fluoroquinolone resistance-associated efflux pumps, fosfomycin and β-lactamase resistance genes, and virulence genes in the overall dataset. The cluster analysis of two isolates detected from wild boar with available clinical genomes showed the closest similarity. This study highlights the link between humans, domestic animals, and wildlife, showing that the current knowledge on this ecological context is lacking and that the potential health risks are underestimated.
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