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Kunjalwar R, Shaw D, Mudey G. Unveiling the Menace of Serratia fonticola: Rising Pathogenic Threat or Bystander? Cureus 2024; 16:e56840. [PMID: 38654783 PMCID: PMC11037926 DOI: 10.7759/cureus.56840] [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: 12/30/2023] [Accepted: 03/24/2024] [Indexed: 04/26/2024] Open
Abstract
A rare human pathogen, Serratia fonticola (S. fonticola) has previously been found to cause skin and soft tissue infections post-trauma. The literature contains limited information regarding its management or sensitivity patterns. We aim to share our findings on S. fonticola infections in an area with a high rate of antibiotic resistance. To draw attention to this uncommon and rare infection, we share a case series of S. fonticola. The antibiogram revealed that S. fonticola in all our cases was multidrug resistant. Two of our five cases had a prior history of road traffic accidents and yielded polymicrobial infections along with S. fonticola. The other two were revived successfully with proper antibiotic treatment, though one had glucose-6-phosphate deficiency (G6PD) and the last one was a neonate with pulmonary hypertension who grew S. fonticola in blood culture.
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Affiliation(s)
- Radha Kunjalwar
- Microbiology, Jawaharlal Nehru Medical College, Datta Meghe Institute of Higher Education and Research, Wardha, IND
| | - Dipika Shaw
- Microbiology, Jawaharlal Nehru Medical College, Datta Meghe Institute of Higher Education and Research, Wardha, IND
| | - Gargi Mudey
- Microbiology, Jawaharlal Nehru Medical College, Datta Meghe Institute of Higher Education and Research, Wardha, IND
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Meijs AP, Rozwandowicz M, Hengeveld PD, Dierikx CM, de Greeff SC, van Duijkeren E, van Dissel JT. Human carriage of ESBL/pAmpC-producing Escherichia coli and Klebsiella pneumoniae in relation to the consumption of raw or undercooked vegetables, fruits, and fresh herbs. Microbiol Spectr 2024; 12:e0284923. [PMID: 38206033 PMCID: PMC10845978 DOI: 10.1128/spectrum.02849-23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2023] [Accepted: 12/08/2023] [Indexed: 01/12/2024] Open
Abstract
We investigated to what extent the consumption of raw or undercooked vegetables, fruits, and fresh herbs influences carriage rates of ESBL/pAmpC-producing Escherichia coli and Klebsiella pneumoniae (ESBL-E/K) in the general population. We assessed long-term carriage and changes in ESBL-E/K prevalence over time, by comparing the results to findings in the same population 5 years earlier. Between July and December 2021, participants sent in two fecal samples and questionnaires, 3 months apart. Food frequency questionnaires were sent on a monthly basis. Fecal samples were cultured and screened for ESBL-E/K, and phenotypically positive isolates were sequenced. Multivariable logistic regression models were established to assess the association between the consumption of fresh produce and ESBL-E/K carriage. The ESBL-E/K prevalence was 7.6% [41/537; 95% confidence interval (CI): 5.7-10.2] in the first sampling round and 7.0% (34/489; 95% CI: 5.0-9.6) in the second. Multivariable models did not result in statistical significance for any of the selected fruit and vegetable types. Trends for increased carriage rates were observed for the consumption of raspberry and blueberry in the summer period. ESBL-E/K prevalence was comparable with the prevalence in the same cohort 5 years earlier (7.5%; 95% CI: 5.6-10.1%). In six persons (1.2%) a genetically highly homologous ESBL-E/K was found. In conclusion, the contribution of the consumption of raw fruits, vegetables, and herbs to ESBL-E/K carriage in humans in the Netherlands is probably low. Despite COVID-19 containment measures (e.g., travel restrictions, social distancing, and hygiene) the ESBL-E/K prevalence was similar to 5 years earlier. Furthermore, indications for long-term carriage were found.IMPORTANCEESBL-producing bacteria are resistant against important classes of antibiotics, including penicillins and cephalosporines, which complicates treatment of infections. Food is one of the main routes of transmission for carriage of these bacteria in the general population. Although fruits, vegetables, and herbs are generally less frequently contaminated with ESBL-producing bacteria compared to meat, exposure might be higher since these products are often eaten raw or undercooked. This research showed that the contribution of the consumption of raw or undercooked fresh produce to ESBL-E/K carriage in the general Dutch population was low. No specific types of fruit or vegetables could be identified that gave a higher risk of carriage. In addition, we demonstrated the presence of genetically highly homologous ESBL-E/K in six persons after a period of 5 years, indicative for long-term carriage.
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Affiliation(s)
- A. P. Meijs
- Centre for Infectious Disease Control, National Institute for Public Health and the Environment, Bilthoven, the Netherlands
| | - M. Rozwandowicz
- Centre for Infectious Disease Control, National Institute for Public Health and the Environment, Bilthoven, the Netherlands
| | - P. D. Hengeveld
- Centre for Infectious Disease Control, National Institute for Public Health and the Environment, Bilthoven, the Netherlands
| | - C. M. Dierikx
- Centre for Infectious Disease Control, National Institute for Public Health and the Environment, Bilthoven, the Netherlands
| | - S. C. de Greeff
- Centre for Infectious Disease Control, National Institute for Public Health and the Environment, Bilthoven, the Netherlands
| | - E. van Duijkeren
- Centre for Infectious Disease Control, National Institute for Public Health and the Environment, Bilthoven, the Netherlands
| | - J. T. van Dissel
- Centre for Infectious Disease Control, National Institute for Public Health and the Environment, Bilthoven, the Netherlands
- Department of Infectious Diseases and Internal Medicine, Leiden University Medical Center, Leiden, the Netherlands
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Cho S, Hiott LM, Read QD, Damashek J, Westrich J, Edwards M, Seim RF, Glinski DA, Bateman McDonald JM, Ottesen EA, Lipp EK, Henderson WM, Jackson CR, Frye JG. Distribution of Antibiotic Resistance in a Mixed-Use Watershed and the Impact of Wastewater Treatment Plants on Antibiotic Resistance in Surface Water. Antibiotics (Basel) 2023; 12:1586. [PMID: 37998788 PMCID: PMC10668835 DOI: 10.3390/antibiotics12111586] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2023] [Revised: 10/28/2023] [Accepted: 10/31/2023] [Indexed: 11/25/2023] Open
Abstract
The aquatic environment has been recognized as a source of antibiotic resistance (AR) that factors into the One Health approach to combat AR. To provide much needed data on AR in the environment, a comprehensive survey of antibiotic-resistant bacteria (ARB), antibiotic resistance genes (ARGs), and antibiotic residues was conducted in a mixed-use watershed and wastewater treatment plants (WWTPs) within the watershed to evaluate these contaminants in surface water. A culture-based approach was used to determine prevalence and diversity of ARB in surface water. Low levels of AR Salmonella (9.6%) and Escherichia coli (6.5%) were detected, while all Enterococcus were resistant to at least one tested antibiotic. Fewer than 20% of extended-spectrum β-lactamase (ESBL)-producing Enterobacteriaceae (17.3%) and carbapenem-resistant Enterobacteriaceae (CRE) (7.7%) were recovered. Six ARGs were detected using qPCR, primarily the erythromycin-resistance gene, ermB. Of the 26 antibiotics measured, almost all water samples (98.7%) had detectable levels of antibiotics. Analysis of wastewater samples from three WWTPs showed that WWTPs did not completely remove AR contaminants. ARGs and antibiotics were detected in all the WWTP effluent discharges, indicating that WWTPs are the source of AR contaminants in receiving water. However, no significant difference in ARGs and antibiotics between the upstream and downstream water suggests that there are other sources of AR contamination. The widespread occurrence and abundance of medically important antibiotics, bacteria resistant to antibiotics used for human and veterinary purposes, and the genes associated with resistance to these antibiotics, may potentially pose risks to the local populations exposed to these water sources.
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Affiliation(s)
- Sohyun Cho
- Poultry Microbiological Safety and Processing Research Unit, Agricultural Research Service, U.S. Department of Agriculture, Athens, GA 30605, USA; (S.C.); (L.M.H.); (C.R.J.)
- Oak Ridge Institute for Science and Education, Oak Ridge, TN 37830, USA;
| | - Lari M. Hiott
- Poultry Microbiological Safety and Processing Research Unit, Agricultural Research Service, U.S. Department of Agriculture, Athens, GA 30605, USA; (S.C.); (L.M.H.); (C.R.J.)
| | - Quentin D. Read
- Agricultural Research Service, U.S. Department of Agriculture, Southeast Area, Raleigh, NC 27606, USA;
| | - Julian Damashek
- Department of Biology, Utica University, Utica, NY 13502, USA;
- Department of Microbiology, University of Georgia, Athens, GA 30602, USA; (J.W.); (E.A.O.)
| | - Jason Westrich
- Department of Microbiology, University of Georgia, Athens, GA 30602, USA; (J.W.); (E.A.O.)
| | - Martinique Edwards
- Department of Environmental Health Science, University of Georgia, Athens, GA 30602, USA; (M.E.); (E.K.L.)
| | - Roland F. Seim
- Oak Ridge Institute for Science and Education, Oak Ridge, TN 37830, USA;
- Center for Environmental Measurement and Modeling, Office of Research and Development, U.S. Environmental Protection Agency, Athens, GA 30605, USA; (D.A.G.); (W.M.H.)
| | - Donna A. Glinski
- Center for Environmental Measurement and Modeling, Office of Research and Development, U.S. Environmental Protection Agency, Athens, GA 30605, USA; (D.A.G.); (W.M.H.)
| | - Jacob M. Bateman McDonald
- Lewis F. Rogers Institute for Environmental and Spatial Analysis, University of North Georgia, Oakwood, GA 30566, USA;
| | - Elizabeth A. Ottesen
- Department of Microbiology, University of Georgia, Athens, GA 30602, USA; (J.W.); (E.A.O.)
| | - Erin K. Lipp
- Department of Environmental Health Science, University of Georgia, Athens, GA 30602, USA; (M.E.); (E.K.L.)
| | - William Matthew Henderson
- Center for Environmental Measurement and Modeling, Office of Research and Development, U.S. Environmental Protection Agency, Athens, GA 30605, USA; (D.A.G.); (W.M.H.)
| | - Charlene R. Jackson
- Poultry Microbiological Safety and Processing Research Unit, Agricultural Research Service, U.S. Department of Agriculture, Athens, GA 30605, USA; (S.C.); (L.M.H.); (C.R.J.)
| | - Jonathan G. Frye
- Poultry Microbiological Safety and Processing Research Unit, Agricultural Research Service, U.S. Department of Agriculture, Athens, GA 30605, USA; (S.C.); (L.M.H.); (C.R.J.)
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Kon H, Lurie-Weinberger M, Cohen A, Metsamber L, Keren-Paz A, Schwartz D, Carmeli Y, Schechner V. Occurrence, Typing, and Resistance Genes of ESBL/AmpC-Producing Enterobacterales in Fresh Vegetables Purchased in Central Israel. Antibiotics (Basel) 2023; 12:1528. [PMID: 37887229 PMCID: PMC10604292 DOI: 10.3390/antibiotics12101528] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2023] [Revised: 10/02/2023] [Accepted: 10/09/2023] [Indexed: 10/28/2023] Open
Abstract
Beta-lactam resistance can lead to increased mortality, higher healthcare expenses, and limited therapeutic options. The primary mechanism of beta-lactam resistance is the production of extended-spectrum beta-lactamases (ESBL) and AmpC beta-lactamases. The spread of beta-lactamase-producing Enterobacterales via the food chain may create a resistance reservoir. The aims of this study were to determine the prevalence of ESBL/AmpC-producing Enterobacterales in vegetables, to examine the association between EBSL/AmpC-producing bacteria and types of vegetables, packaging, and markets, and to investigate the genetic features of ESBL-producing isolates. The antibiotic susceptibilities were determined using VITEK. Phenotypic ESBL/AmpC production was confirmed using disk diffusion. ESBL-producing isolates were subjected to Fourier-transform infrared (FT-IR) spectroscopy and to whole genome sequencing using Oxford Nanopore sequencing technology. Of the 301 vegetable samples, 20 (6.6%) were positive for ESBL producers (16 Klebsiella pneumoniae and 4 Escherichia coli), and 63 (20.9%) were positive for AmpC producers (56 Enterobacter cloacae complex, 4 Enterobacter aerogenes/cancerogenus, and 3 Pantoea spp., Aeromonas hydrophila, and Citrobacter braakii). The blaCTX-M and blaSHV genes were most common among ESBL-producing isolates. The beta-lactamase genes of the ESBL producers were mainly carried on plasmids. Multilocus sequence typing and FT-IR typing revealed high diversity among the ESBL producers. AmpC producers were significantly more common in leafy greens and ESBL producers were significantly less common in climbing vegetables. The presence of ESBL/AmpC-producing Enterobacterales in raw vegetables may contribute to the dissemination of resistance genes in the community.
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Affiliation(s)
- Hadas Kon
- National Institute for Antibiotic Resistance and Infection Control, Ministry of Health, Tel-Aviv 6423906, Israel; (H.K.); (M.L.-W.); (A.C.); (A.K.-P.); (D.S.); (Y.C.)
| | - Mor Lurie-Weinberger
- National Institute for Antibiotic Resistance and Infection Control, Ministry of Health, Tel-Aviv 6423906, Israel; (H.K.); (M.L.-W.); (A.C.); (A.K.-P.); (D.S.); (Y.C.)
| | - Adi Cohen
- National Institute for Antibiotic Resistance and Infection Control, Ministry of Health, Tel-Aviv 6423906, Israel; (H.K.); (M.L.-W.); (A.C.); (A.K.-P.); (D.S.); (Y.C.)
| | - Liat Metsamber
- School of Public Health, Faculty of Medicine, Tel-Aviv University, Tel-Aviv 6997801, Israel;
| | - Alona Keren-Paz
- National Institute for Antibiotic Resistance and Infection Control, Ministry of Health, Tel-Aviv 6423906, Israel; (H.K.); (M.L.-W.); (A.C.); (A.K.-P.); (D.S.); (Y.C.)
| | - David Schwartz
- National Institute for Antibiotic Resistance and Infection Control, Ministry of Health, Tel-Aviv 6423906, Israel; (H.K.); (M.L.-W.); (A.C.); (A.K.-P.); (D.S.); (Y.C.)
| | - Yehuda Carmeli
- National Institute for Antibiotic Resistance and Infection Control, Ministry of Health, Tel-Aviv 6423906, Israel; (H.K.); (M.L.-W.); (A.C.); (A.K.-P.); (D.S.); (Y.C.)
- Faculty of Medicine, Tel-Aviv University, Tel-Aviv 6997801, Israel
| | - Vered Schechner
- National Institute for Antibiotic Resistance and Infection Control, Ministry of Health, Tel-Aviv 6423906, Israel; (H.K.); (M.L.-W.); (A.C.); (A.K.-P.); (D.S.); (Y.C.)
- School of Public Health, Faculty of Medicine, Tel-Aviv University, Tel-Aviv 6997801, Israel;
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Habib I, Al-Rifai RH, Mohamed MYI, Ghazawi A, Abdalla A, Lakshmi G, Agamy N, Khan M. Contamination Levels and Phenotypic and Genomic Characterization of Antimicrobial Resistance in Escherichia coli Isolated from Fresh Salad Vegetables in the United Arab Emirates. Trop Med Infect Dis 2023; 8:294. [PMID: 37368712 DOI: 10.3390/tropicalmed8060294] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2023] [Revised: 05/01/2023] [Accepted: 05/04/2023] [Indexed: 06/29/2023] Open
Abstract
Contaminated fresh produce has been identified as a vehicle for human foodborne illness. The present study investigated the counts, antimicrobial resistance profile, and genome-based characterization of Escherichia coli in 11 different types of fresh salad vegetable products (n = 400) sampled from retailers in Abu Dhabi and Dubai in the United Arab Emirates. E. coli was detected in 30% of the tested fresh salad vegetable items, with 26.5% of the samples having an unsatisfactory level (≥100 CFU/g) of E. coli, notably arugula and spinach. The study also assessed the effect of the variability in sample conditions on E. coli counts and found, based on negative binominal regression analysis, that samples from local produce had a significantly higher (p-value < 0.001) E. coli count than imported samples. The analysis also indicated that fresh salad vegetables from the soil-less farming system (e.g., hydroponic and aeroponic) had significantly (p-value < 0.001) fewer E. coli than those from traditional produce farming. The study also examined the antimicrobial resistance in E. coli (n = 145) recovered from fresh salad vegetables and found that isolates exhibited the highest phenotypic resistance toward ampicillin (20.68%), tetracycline (20%), and trimethoprim-sulfamethoxazole (10.35%). A total of 20 (13.79%) of the 145 E. coli isolates exhibited a multidrug-resistant phenotype, all from locally sourced leafy salad vegetables. The study further characterized 18 of the 20 multidrug-resistant E. coli isolates using whole-genome sequencing and found that the isolates had varying numbers of virulence-related genes, ranging from 8 to 25 per isolate. The frequently observed genes likely involved in extra-intestinal infection were CsgA, FimH, iss, and afaA. The β-lactamases gene blaCTX-M-15 was prevalent in 50% (9/18) of the E. coli isolates identified from leafy salad vegetable samples. The study highlights the potential risk of foodborne illness and the likely spread of antimicrobial resistance and resistance genes associated with consuming leafy salad vegetables and emphasizes the importance of proper food safety practices, including proper storage and handling of fresh produce.
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Affiliation(s)
- Ihab Habib
- Veterinary Public Health Research Laboratory, Department of Veterinary Medicine, College of Agriculture and Veterinary Medicine, United Arab Emirates University, Al Ain P.O. Box 1555, United Arab Emirates
- High Institute of Public Health, Alexandria University, Alexandria P.O. Box 21511, Egypt
| | - Rami H Al-Rifai
- Institute of Public Health, College of Medicine and Health Sciences, United Arab Emirates University, Al Ain P.O. Box 1555, United Arab Emirates
- Zayed Center for Health Sciences, United Arab Emirates University, Al Ain P.O. Box 15551, United Arab Emirates
| | - Mohamed-Yousif Ibrahim Mohamed
- Veterinary Public Health Research Laboratory, Department of Veterinary Medicine, College of Agriculture and Veterinary Medicine, United Arab Emirates University, Al Ain P.O. Box 1555, United Arab Emirates
| | - Akela Ghazawi
- Department of Medical Microbiology and Immunology, College of Medicine and Health Sciences, United Arab Emirates University, Al Ain P.O. Box 1555, United Arab Emirates
| | - Afra Abdalla
- Veterinary Public Health Research Laboratory, Department of Veterinary Medicine, College of Agriculture and Veterinary Medicine, United Arab Emirates University, Al Ain P.O. Box 1555, United Arab Emirates
| | - Glindya Lakshmi
- Veterinary Public Health Research Laboratory, Department of Veterinary Medicine, College of Agriculture and Veterinary Medicine, United Arab Emirates University, Al Ain P.O. Box 1555, United Arab Emirates
| | - Neveen Agamy
- High Institute of Public Health, Alexandria University, Alexandria P.O. Box 21511, Egypt
| | - Mushtaq Khan
- Zayed Center for Health Sciences, United Arab Emirates University, Al Ain P.O. Box 15551, United Arab Emirates
- Department of Medical Microbiology and Immunology, College of Medicine and Health Sciences, United Arab Emirates University, Al Ain P.O. Box 1555, United Arab Emirates
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First detection of tet(X4)-positive Enterobacterales in retail vegetables and clonal spread of Escherichia coli ST195 producing Tet(X4) in animals, foods, and humans across China and Thailand. Int J Food Microbiol 2023; 391-393:110145. [PMID: 36841076 DOI: 10.1016/j.ijfoodmicro.2023.110145] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2022] [Revised: 01/19/2023] [Accepted: 02/15/2023] [Indexed: 02/23/2023]
Abstract
The mobile tigecycline-resistant gene tet(X4), which confers resistance to all tetracyclines, has been identified in bacterial isolates from various sources. However, there are no reports on the occurrence of tet(X4) in bacterial isolates of ready-to-eat fresh vegetables. In this study, 113 vegetable samples from farmers' markets were screened for tigecycline-resistant strains. Ten Escherichia coli (two ST195, two ST48, and one ST10, ST58, ST88, ST394, ST641, and ST101) and one Klebsiella pneumoniae (ST327) recovered from nine vegetable samples (7.96 %) were identified as carrying tet(X4). The core genome sequences of the two E. coli ST195 isolates showed a close relationship (14-41 single-nucleotide polymorphisms) with 31 tet(X4)-bearing E. coli ST195 isolates from humans, pigs, pork, and bird in China and Thailand, and the 33 E. coli ST195 isolates producing Tet(X4) shared similar resistance genes and plasmid replicons. Nanopore sequencing and conjugation experiments confirmed that the tet(X4) genes were located on the hybrid plasmids IncFIA-HI1A-HI1B (n = 6), IncX1 (n = 3), and IncFII2 (n = 1) in E. coli, and IncFII plasmid in K. pneumoniae. IncFIA-HI1A-HI1B and IncX1 plasmids shared highly similar structures with plasmids from various sources in the GenBank database. This is the first study to report the observation of tet(X4)-positive bacteria in retail vegetables. The epidemic clones and plasmids contribute to tet(X4) dissemination in vegetables. The clonal spread of Tet(X4)-producing E. coli ST195 across multiple niches and countries could pose a potential threat to public health.
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Prevalence and Characterization of Beta-Lactam and Carbapenem-Resistant Bacteria Isolated from Organic Fresh Produce Retailed in Eastern Spain. Antibiotics (Basel) 2023; 12:antibiotics12020387. [PMID: 36830297 PMCID: PMC9952115 DOI: 10.3390/antibiotics12020387] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2022] [Revised: 02/02/2023] [Accepted: 02/07/2023] [Indexed: 02/16/2023] Open
Abstract
Fresh fruits and vegetables are potential reservoirs for antimicrobial resistance determinants, but few studies have focused specifically on organic vegetables. The present study aimed to determine the presence of third-generation cephalosporin (3GC)- and carbapenem-resistant Gram-negative bacteria on fresh organic vegetables produced in the city of Valencia (Spain). Main expanded spectrum beta-lactamase (ESBL)- and carbapenemase-encoding genes were also detected in the isolates. One hundred and fifteen samples were analyzed using selective media supplemented with cefotaxime and meropenem. Resistance assays for twelve relevant antibiotics in medical use were performed using a disc diffusion test. A total of 161 isolates were tested. Overall, 33.5% presented multidrug resistance and 16.8% were resistant to all β-lactam antibiotics tested. Imipenem resistance was observed in 18% of isolates, and low resistance levels were found to ceftazidime and meropenem. Opportunistic pathogens such as Acinetobacter baumannii, Enterobacter spp., Raoultella sp., and Stenotrophomonas maltophilia were detected, all presenting high rates of resistance. PCR assays revealed blaVIM to be the most frequently isolated ESBL-encoding gene, followed by blaTEM and blaOXA-48. These results confirm the potential of fresh vegetables to act as reservoirs for 3GC- and carbapenem-producing ARB. Further studies must be carried out to determine the impact of raw organic food on the spread of AMRs into the community.
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Whole-Genome Analysis of blaNDM-Bearing Proteus mirabilis Isolates and mcr-1-Positive Escherichia coli Isolates Carrying blaNDM from the Same Fresh Vegetables in China. Foods 2023; 12:foods12030492. [PMID: 36766021 PMCID: PMC9913981 DOI: 10.3390/foods12030492] [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: 11/29/2022] [Revised: 01/12/2023] [Accepted: 01/16/2023] [Indexed: 01/24/2023] Open
Abstract
The global spread of colistin or carbapenem-resistant Enterobacteriaceae (CRE) has been a pressing threat to public health. Members of Enterobacteriaceae, especially Proteus mirabilis and Escherichia coli, have been prevalent foodborne pathogens and such pathogens from fresh vegetables have triggered foodborne illness in China. However, reports about CRE, especially P. mirabilis from fresh vegetables, are still lacking. In this study, we identified five blaNDM-positive P. mirabilis and five blaNDM-positive generic E. coli concurrently from five fresh vegetables in two markets from China, and four of the five E. coli also carried mcr-1. The 10 isolates were characterized with methods including antimicrobial susceptibility testing, conjugation, whole-genome sequencing and phylogenetic analysis. All 10 isolates were multidrug-resistant (MDR). blaNDM-5 in five E. coli isolates and one P. mirabilis carrying blaNDM-5 was located on similarly transferable IncX3 plasmids, while transferably untypable plasmids were the carriers of blaNDM-1 in four P. mirabilis isolates from different types of vegetables/markets. mcr-1 in the four blaNDM-5-positive E. coli was located on similarly non-conjugative IncHI2 MDR plasmids lacking transfer region. Notably, ISCR1 complex class 1 integron capable of capturing blaNDM-1 was found on all untypable plasmids from P. mirabilis, and five copies of ISCR1 complex class 1 integron containing blaNDM-1 even occurred in one P. mirabilis, which showed high-level carbapenem resistance. Plasmid and phylogenetic analysis revealed that the blaNDM-positive P. mirabilis and E. coli from fresh vegetables might be derived from animals and transmitted to humans via the food chain. The concurrence of blaNDM-positive P. mirabilis and E. coli carrying both mcr-1 and blaNDM in different types of fresh vegetables eaten raw is alarming and threatens food safety. Sustained surveillance of these foodborne pathogens among fresh vegetables is urgent to ensure the health of food consumers. We report for the first time the concurrence of blaNDM-positive P. mirabilis and mcr-1-bearing E. coli carrying blaNDM from the same fresh vegetables.
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Zhao CX, Su XX, Xu MR, An XL, Su JQ. Uncovering the diversity and contents of gene cassettes in class 1 integrons from the endophytes of raw vegetables. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2022; 247:114282. [PMID: 36371907 DOI: 10.1016/j.ecoenv.2022.114282] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/11/2022] [Revised: 10/22/2022] [Accepted: 11/07/2022] [Indexed: 06/16/2023]
Abstract
Rapid spread of antibiotic resistance genes (ARGs) in pathogens is threatening human health. Integrons allow bacteria to integrate and express foreign genes, facilitating horizontal transfer of ARGs in environments. Consumption of raw vegetables represents a pathway for human exposure to environmental ARGs. However, few studies have focused on integron-associated ARGs in the endophytes of raw vegetables. Here, based on the approach of qPCR and clone library, we quantified the abundance of integrase genes and analyzed the diversity and contents of resistance gene cassettes in class 1 integrons from the endophytes of six common raw vegetables. The results revealed that integrase genes for class 1 integron were most prevalent compared with class 2 and class 3 integron integrase genes (1-2 order magnitude, P < 0.05). The cucumber endophytes harbored a higher absolute abundance of integrase genes than other vegetables, while the highest bacterial abundance was detected in cabbage and cucumber endophytes. Thirty-two unique resistance gene cassettes were detected, the majority of which were associated with the genes encoding resistance to beta-lactam and aminoglycoside. Antibiotic resistance gene cassettes accounted for 52.5 % of the functionally annotated gene cassettes, and blaTEM-157 and aadA2 were the most frequently detected resistance cassettes. Additionally, carrot endophytes harbored the highest proportion of antibiotic resistance gene cassettes in the class 1 integrons. Collectively, these results provide an in-depth view of acquired resistance genes by integrons in the raw vegetable endophytes and highlight the potential health risk of the transmission of ARGs via the food chain.
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Affiliation(s)
- Cai-Xia Zhao
- Fujian Key Laboratory of Watershed Ecology, Key Laboratory of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Xiao-Xuan Su
- Interdisciplinary Research Center for Agriculture Green Development in Yangtze River Basin, College of Resources and Environment, Southwest University, 400715 Chongqing, China
| | - Mei-Rong Xu
- Fujian Key Laboratory of Watershed Ecology, Key Laboratory of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Xin-Li An
- Fujian Key Laboratory of Watershed Ecology, Key Laboratory of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China; University of Chinese Academy of Sciences, Beijing 100049, China.
| | - Jian-Qiang Su
- Fujian Key Laboratory of Watershed Ecology, Key Laboratory of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China; University of Chinese Academy of Sciences, Beijing 100049, China
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Rabaan AA, Eljaaly K, Alhumaid S, Albayat H, Al-Adsani W, Sabour AA, Alshiekheid MA, Al-Jishi JM, Khamis F, Alwarthan S, Alhajri M, Alfaraj AH, Tombuloglu H, Garout M, Alabdullah DM, Mohammed EAE, Yami FSA, Almuhtaresh HA, Livias KA, Mutair AA, Almushrif SA, Abusalah MAHA, Ahmed N. An Overview on Phenotypic and Genotypic Characterisation of Carbapenem-Resistant Enterobacterales. MEDICINA (KAUNAS, LITHUANIA) 2022; 58:1675. [PMID: 36422214 PMCID: PMC9696003 DOI: 10.3390/medicina58111675] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/12/2022] [Revised: 11/16/2022] [Accepted: 11/18/2022] [Indexed: 08/26/2023]
Abstract
Improper use of antimicrobials has resulted in the emergence of antimicrobial resistance (AMR), including multi-drug resistance (MDR) among bacteria. Recently, a sudden increase in Carbapenem-resistant Enterobacterales (CRE) has been observed. This presents a substantial challenge in the treatment of CRE-infected individuals. Bacterial plasmids include the genes for carbapenem resistance, which can also spread to other bacteria to make them resistant. The incidence of CRE is rising significantly despite the efforts of health authorities, clinicians, and scientists. Many genotypic and phenotypic techniques are available to identify CRE. However, effective identification requires the integration of two or more methods. Whole genome sequencing (WGS), an advanced molecular approach, helps identify new strains of CRE and screening of the patient population; however, WGS is challenging to apply in clinical settings due to the complexity and high expense involved with this technique. The current review highlights the molecular mechanism of development of Carbapenem resistance, the epidemiology of CRE infections, spread of CRE, treatment options, and the phenotypic/genotypic characterisation of CRE. The potential of microorganisms to acquire resistance against Carbapenems remains high, which can lead to even more susceptible drugs such as colistin and polymyxins. Hence, the current study recommends running the antibiotic stewardship programs at an institutional level to control the use of antibiotics and to reduce the spread of CRE worldwide.
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Affiliation(s)
- Ali A. Rabaan
- Molecular Diagnostic Laboratory, Johns Hopkins Aramco Healthcare, Dhahran 31311, Saudi Arabia
- College of Medicine, Alfaisal University, Riyadh 11533, Saudi Arabia
- Department of Public Health and Nutrition, The University of Haripur, Haripur 22610, Pakistan
| | - Khalid Eljaaly
- Department of Pharmacy Practice, Faculty of Pharmacy, King Abdulaziz University, Jeddah 21589, Saudi Arabia
- Pharmacy Practice and Science Department, College of Pharmacy, University of Arizona, Tucson, AZ 85716, USA
| | - Saad Alhumaid
- Administration of Pharmaceutical Care, Al-Ahsa Health Cluster, Ministry of Health, Al-Ahsa 31982, Saudi Arabia
| | - Hawra Albayat
- Infectious Disease Department, King Saud Medical City, Riyadh 7790, Saudi Arabia
| | - Wasl Al-Adsani
- Department of Medicine, Infectious Diseases Hospital, Kuwait City 63537, Kuwait
- Department of Infectious Diseases, Hampton Veterans Administration Medical Center, Hampton, VA 23667, USA
| | - Amal A. Sabour
- Department of Botany and Microbiology, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
| | - Maha A. Alshiekheid
- Department of Botany and Microbiology, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
| | - Jumana M. Al-Jishi
- Internal Medicine Department, Qatif Central Hospital, Qatif 635342, Saudi Arabia
| | - Faryal Khamis
- Infection Diseases Unit, Department of Internal Medicine, Royal Hospital, Muscat 1331, Oman
| | - Sara Alwarthan
- Department of Internal Medicine, College of Medicine, Imam Abdulrahman Bin Faisal University, Ammam 34212, Saudi Arabia
| | - Mashael Alhajri
- Department of Internal Medicine, College of Medicine, Imam Abdulrahman Bin Faisal University, Ammam 34212, Saudi Arabia
| | - Amal H. Alfaraj
- Pediatric Department, Abqaiq General Hospital, First Eastern Health Cluster, Abqaiq 33261, Saudi Arabia
| | - Huseyin Tombuloglu
- Department of Genetics Research, Institute for Research and Medical Consultations (IRMC), Imam Abdulrahman Bin Faisal University, Dammam 34221, Saudi Arabia
| | - Mohammed Garout
- Department of Community Medicine and Health Care for Pilgrims, Faculty of Medicine, Umm Al-Qura University, Makkah 21955, Saudi Arabia
| | - Duaa M. Alabdullah
- Molecular Diagnostic Laboratory, Dammam Regional Laboratory and Blood Bank, Dammam 31411, Saudi Arabia
| | - Elmoeiz Ali Elnagi Mohammed
- Department of Clinical Laboratory Sciences, Prince Sultan Military College of Health Sciences, Dhahran 34313, Saudi Arabia
| | - Fatimah S. Al Yami
- Department of Medical Laboratory, King Fahad Military Medical Complex, Dhahran 34313, Saudi Arabia
| | - Haifa A. Almuhtaresh
- Department of Clinical Laboratories Services, Dammam Medical Complex, Dammam Health Network, Dammam 5343, Saudi Arabia
| | - Kovy Arteaga Livias
- Facultad de Ciencias de la Salud, Universidad Científica del Sur, Lima 15001, Peru
- Facultad de Medicina, Universidad Nacional Hermilio Valdizán, Huánuco 10000, Peru
| | - Abbas Al Mutair
- Research Center, Almoosa Specialist Hospital, Al-Ahsa 36342, Saudi Arabia
- College of Nursing, Princess Norah Bint Abdulrahman University, Riyadh 11564, Saudi Arabia
- School of Nursing, Wollongong University, Wollongong, NSW 2522, Australia
- Nursing Department, Prince Sultan Military College of Health Sciences, Dhahran 33048, Saudi Arabia
| | - Shawqi A. Almushrif
- Department of Microbiology and Hematology Laboratory, Dammam Comprehensive Screening Centre, Dammam 31433, Saudi Arabia
| | | | - Naveed Ahmed
- Department of Medical Microbiology and Parasitology, School of Medical Sciences, Universiti Sains Malaysia, Kubang Kerian 16150, Malaysia
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Brunn AA, Roustit M, Kadri-Alabi Z, Guardabassi L, Waage J. A Meta-Analysis to Estimate Prevalence of Resistance to Tetracyclines and Third Generation Cephalosporins in Enterobacteriaceae Isolated from Food Crops. Antibiotics (Basel) 2022; 11:antibiotics11101424. [PMID: 36290083 PMCID: PMC9598472 DOI: 10.3390/antibiotics11101424] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2022] [Revised: 09/29/2022] [Accepted: 10/10/2022] [Indexed: 11/16/2022] Open
Abstract
Application of human and animal waste to fields and water sources and on-farm antimicrobial usage are documented contributors to the occurrence of antimicrobial resistance (AMR) in agricultural domains. This meta-analysis aimed to determine the prevalence of resistance to tetracycline (TET) and third generation cephalosporins (3GC) in Enterobacteriaceae isolated from food crops. TET was selected in view of its wide use in agriculture, whereas 3GC were selected because of the public health concerns of reported resistance to these critically important antibiotics in the environment. Forty-two studies from all six world regions published between 2010 and 2022 met the eligibility criteria. A random effects model estimated that 4.63% (95% CI: 2.57%, 7.18%; p-value: <0.0001) and 3.75% (95%CI: 2.13%, 5.74%; p-value: <0.0001) of surveyed food crops harboured Enterobacteriaceae resistant to TET and 3GC, respectively. No significant differences were observed between pre- and post-harvest stages of the value chain. 3GC resistance prevalence estimates in food crops were highest for the African region (6.59%; 95% CI: 2.41%, 12.40%; p-value: <0.0001) and lowest for Europe (1.84%; 95% CI: 0.00%, 6.02%; p-value: <0.0001). Considering the rare use of 3GC in agriculture, these results support its inclusion for AMR surveillance in food crops. Integrating food crops into One Health AMR surveillance using harmonized sampling methods could confirm trends highlighted here.
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Affiliation(s)
- Ariel A. Brunn
- Department of Public Health, Environment and Society, London School of Hygiene and Tropical Medicine, London WC1E 7HT, UK
- Correspondence:
| | - Manon Roustit
- Department of Pathobiology and Population Sciences, Royal Veterinary College, London NW1 0TU, UK
| | - Zaharat Kadri-Alabi
- Department of Pathobiology and Population Sciences, Royal Veterinary College, London NW1 0TU, UK
| | - Luca Guardabassi
- Department of Pathobiology and Population Sciences, Royal Veterinary College, London NW1 0TU, UK
- Department of Veterinary and Animal Sciences, University of Copenhagen, 1165 Copenhagen, Denmark
| | - Jeff Waage
- Department of Disease Control, London School of Hygiene and Tropical Medicine, London WC1E 7HT, UK
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12
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Villasuso-Alcocer V, Flores-Tapia JP, Perez-Garfias F, Rochel-Perez A, Mendez-Dominguez N. Serratia fonticola and its role as a single pathogen causing emphysematous pyelonephritis in a non-diabetic patient: A case report. World J Clin Cases 2022; 10:10600-10605. [PMID: 36312511 PMCID: PMC9602252 DOI: 10.12998/wjcc.v10.i29.10600] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/15/2022] [Revised: 04/15/2022] [Accepted: 08/21/2022] [Indexed: 02/05/2023] Open
Abstract
BACKGROUND Diagnosis of emphysematous pyelonephritis has been described around the world for some decades, frequently associated with Escherichia coli and other anaerobic, gas-forming bacteria and mostly in patients living with diabetes. We present a case report of emphysematous pyelonephritis in a non-diabetic patient caused by Serratia fonticola as well as a brief literature review to draw attention to this rare pathogen as a cause of pyelonephritis.
CASE SUMMARY A 38-year-old female presented with fever, severe pain in the right flank and changes in urinary habits. She was admitted, and emphysematous pyelonephritis was confirmed by an abdominal computerized tomography and urine cultures; the latter showed Serratia fonticola as a single pathogen. After 3 d of being treated with piperacillin/tazobactam and percutaneous drainage she became afebrile, and the gas presence reduced.
CONCLUSION Emphysematous pyelonephritis infections in non-diabetic patients are rare but can be severe and life-threatening. This case suggests that Serratia fonticola infection can occur in patients undergoing invasive or instrumented procedures.
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Affiliation(s)
- Victor Villasuso-Alcocer
- Scholar at Direccion General de Calidad y Educacion en Salud, Secretaría de Salud, Mexico 11570, Mexico
| | - Juan P Flores-Tapia
- Urology Department, Hospital Regional de Alta Especialidad de la Peninsula de Yucatan, Merida 97300, Yucatan, Mexico
| | - Fernando Perez-Garfias
- Urology Department, Hospital Regional de Alta Especialidad de la Peninsula de Yucatan, Merida 97300, Yucatan, Mexico
| | - Andrea Rochel-Perez
- Urology Department, Hospital Regional de Alta Especialidad de la Peninsula de Yucatan, Merida 97300, Yucatan, Mexico
| | - Nina Mendez-Dominguez
- Research and Learning, Hospital Regional de Alta Especialidad de la Peninsula de Yucatan, Merida 97130, Yucatan, Mexico
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Ejaz H, Junaid K, Yasmeen H, Naseer A, Alam H, Younas S, Qamar MU, Abdalla AE, Abosalif KOA, Ahmad N, Bukhari SNA. Multiple Antimicrobial Resistance and Heavy Metal Tolerance of Biofilm-Producing Bacteria Isolated from Dairy and Non-Dairy Food Products. Foods 2022; 11:foods11182728. [PMID: 36140855 PMCID: PMC9497630 DOI: 10.3390/foods11182728] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2022] [Revised: 09/01/2022] [Accepted: 09/02/2022] [Indexed: 11/16/2022] Open
Abstract
Foodborne pathogens have acquired the ability to produce biofilms to survive in hostile environments. This study evaluated biofilm formation, antimicrobial resistance (AMR), and heavy metal tolerance of bacteria isolated from dairy and non-dairy food products. We aseptically collected and processed 200 dairy and non-dairy food specimens in peptone broth, incubated them overnight at 37 °C, and sub-cultured them on various culture media. Bacterial growth was identified with biochemical tests and API 20E and 20NE strips. The AMR of the isolates was observed against different antibacterial drug classes. Biofilm formation was detected with the crystal violet tube method. Heavy metal salts were used at concentrations of 250−1500 µg/100 mL to observe heavy metal tolerance. We isolated 180 (50.4%) bacteria from dairy and 177 (49.6%) from non-dairy food samples. The average colony-forming unit (CFU) count for dairy and non-dairy samples was 2.9 ± 0.9 log CFU/mL and 5.1 ± 0.3 log CFU/mL, respectively. Corynebacterium kutscheri (n = 74), lactobacilli (n = 73), and Staphylococcus aureus (n = 56) were the predominant Gram-positive and Shigella (n = 10) the predominant Gram-negative bacteria isolated. The correlation between biofilm formation and AMR was significant (p < 0.05) for most cephalosporins, aminoglycosides, and fluoroquinolones. Heavy metal tolerance tended to be higher in biofilm producers at different metal concentrations. The pathogens isolated from dairy and non-dairy food showed a high burden of AMR, high propensity for biofilm formation, and heavy metal tolerance, and pose an imminent threat to public health.
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Affiliation(s)
- Hasan Ejaz
- Department of Clinical Laboratory Sciences, College of Applied Medical Sciences, Jouf University, Sakaka 72388, Saudi Arabia
- Correspondence:
| | - Kashaf Junaid
- Department of Clinical Laboratory Sciences, College of Applied Medical Sciences, Jouf University, Sakaka 72388, Saudi Arabia
| | - Humaira Yasmeen
- Department of Microbiology and Molecular Genetics, The Women University, Multan 66000, Pakistan
| | - Amina Naseer
- Department of Microbiology and Molecular Genetics, The Women University, Multan 66000, Pakistan
| | - Hafsa Alam
- Department of Microbiology and Molecular Genetics, The Women University, Multan 66000, Pakistan
| | - Sonia Younas
- HKU-Pasteur Research Pole, School of Public Health, LKS Faculty of Medicine, The University of Hong Kong, Hong Kong, China
| | - Muhammad Usman Qamar
- Department of Microbiology, Faculty of Life Sciences, Government College University, Faisalabad 38000, Pakistan
| | - Abualgasim E. Abdalla
- Department of Clinical Laboratory Sciences, College of Applied Medical Sciences, Jouf University, Sakaka 72388, Saudi Arabia
| | - Khalid O. A. Abosalif
- Department of Clinical Laboratory Sciences, College of Applied Medical Sciences, Jouf University, Sakaka 72388, Saudi Arabia
| | - Naveed Ahmad
- Department of Pharmaceutics, College of Pharmacy, Jouf University, Sakaka 72388, Saudi Arabia
| | - Syed Nasir Abbas Bukhari
- Department of Pharmaceutical Chemistry, College of Pharmacy, Jouf University, Sakaka 72388, Saudi Arabia
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Altayb HN, Elbadawi HS, Alzahrani FA, Baothman O, Kazmi I, Nadeem MS, Hosawi S, Chaieb K. Co-Occurrence of β-Lactam and Aminoglycoside Resistance Determinants among Clinical and Environmental Isolates of Klebsiella pneumoniae and Escherichia coli: A Genomic Approach. Pharmaceuticals (Basel) 2022; 15:1011. [PMID: 36015159 PMCID: PMC9416466 DOI: 10.3390/ph15081011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2022] [Revised: 08/11/2022] [Accepted: 08/15/2022] [Indexed: 12/04/2022] Open
Abstract
The presence of antimicrobial-resistance genes (ARGs) in mobile genetic elements (MGEs) facilitates the rapid development and dissemination of multidrug-resistant bacteria, which represents a serious problem for human health. This is a One Health study which aims to investigate the co-occurrence of antimicrobial resistance determinants among clinical and environmental isolates of K. pneumoniae and E. coli. Various bioinformatics tools were used to elucidate the bacterial strains' ID, resistome, virulome, MGEs, and phylogeny for 42 isolates obtained from hospitalized patients (n = 20) and environmental sites (including fresh vegetables, fruits, and drinking water) (n = 22). The multilocus sequence typing (MLST) showed that K. pneumoniae belonged to ten sequence types (STs) while the E. coli belonged to seventeen STs. Multidrug-resistant isolates harbored β-lactam, aminoglycoside resistance determinants, and MGE were detected circulating in the environment (drinking water, fresh vegetables, and fruits) and in patients hospitalized with postoperative infections, neonatal sepsis, and urinary tract infection. Four K. pneumoniae environmental isolates (7E, 16EE, 1KE, and 19KE) were multidrug-resistant and were positive for different beta-lactam and aminoglycoside resistance determinants. blaCTX-M-15 in brackets of ISEc 9 and Tn 3 transposases was detected in isolates circulating in the pediatrics unit of Soba hospital and the environment. This study documented the presence of bacterial isolates harboring a similar pattern of antimicrobial resistance determinants circulating in hospitals and environments. A rapid response is needed from stakeholders to initiate a program for infection prevention and control measures to detect such clones disseminated in the communities and hospitals.
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Affiliation(s)
- Hisham N. Altayb
- Department of Biochemistry, Faculty of Science, King Abdulaziz University, Jeddah 21589, Saudi Arabia
- Centre for Artificial Intelligence in Precision Medicine, King Abdulaziz University, Jeddah 21589, Saudi Arabia
| | - Hana S. Elbadawi
- Microbiology and Parasitology Department, Soba University Hospital, University of Khartoum, Khartoum 11115, Sudan
| | - Faisal A. Alzahrani
- Department of Biochemistry, Faculty of Science, King Abdulaziz University, Jeddah 21589, Saudi Arabia
- Embryonic Stem Cells Unit, King Fahd Medical Research Center, King Abdulaziz University, Jeddah 21589, Saudi Arabia
| | - Othman Baothman
- Department of Biochemistry, Faculty of Science, King Abdulaziz University, Jeddah 21589, Saudi Arabia
| | - Imran Kazmi
- Department of Biochemistry, Faculty of Science, King Abdulaziz University, Jeddah 21589, Saudi Arabia
| | - Muhammad Shahid Nadeem
- Department of Biochemistry, Faculty of Science, King Abdulaziz University, Jeddah 21589, Saudi Arabia
| | - Salman Hosawi
- Department of Biochemistry, Faculty of Science, King Abdulaziz University, Jeddah 21589, Saudi Arabia
| | - Kamel Chaieb
- Department of Biochemistry, Faculty of Science, King Abdulaziz University, Jeddah 21589, Saudi Arabia
- Laboratory of Analysis, Treatment and Valorization of Pollutants of the Environmental and Products, Faculty of Pharmacy, University of Monastir, Monastir 5000, Tunisia
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15
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Extended Spectrum β-Lactamase Activity and Cephalosporin Resistance in Escherichia coli from U.S. Mid-Atlantic Surface and Reclaimed Water. Appl Environ Microbiol 2022; 88:e0083722. [PMID: 35862684 PMCID: PMC9361821 DOI: 10.1128/aem.00837-22] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023] Open
Abstract
Phylogenetic distribution and extended spectrum β-lactamase (ESBL) activity of Escherichia coli recovered from surface and reclaimed water in the mid-Atlantic U.S. were evaluated. Among 488 isolates, phylogroups B1 and A were the most and least prevalent, respectively. Water type, but not season, affected phylogroup distribution. The likelihood of detecting group A isolates was higher in reclaimed than pond (P < 0.01), freshwater river (P < 0.01) or brackish river (P < 0.05) water. Homogeneity in group distribution was lowest in pond water, where group B1 comprised 50% of isolates. Only 16 (3.3%) isolates exhibited phenotypic resistance to one or more cephalosporins tested and only four had ESBL activity, representing groups B1, B2 isolates, and D. Phylogroup was a factor in antimicrobial resistance (P < 0.05), with group A (8.7%) and D (1.6%) exhibiting the highest and lowest rates. Resistance to cefoxitin was the most prevalent. Multi- versus single drug resistance was affected by phylogroup (P < 0.05) and more likely in groups D and B1 than A which carried resistance to cefoxitin only. The most detected β-lactam resistance genes were blaCMY-2 and blaTEM. Water type was a factor for blaCTX-M gene detection (P < 0.05). Phenotypic resistance to cefotaxime, ceftriaxone, cefuroxime and ceftazidime, and genetic determinants for ESBL-mediated resistance were found predominantly in B2 and D isolates from rivers and reclaimed water. Overall, ESBL activity and cephalosporin resistance in reclaimed and surface water isolates were low. Integrating data on ESBL activity and β-lactam resistance among E. coli populations can inform decisions on safety of irrigation water sources and One Health. IMPORTANCE Extended spectrum β-lactamase (ESBL) producing bacteria, that are resistant to a broad range of antimicrobial agents, are spreading in the environment but data remain scarce. ESBL-producing Escherichia coli infections in the community are on the rise. This work was conducted to assess presence of ESBL-producing E. coli in water that could be used for irrigation of fresh produce. The study provides the most extensive evaluation of ESBL-producing E. coli in surface and reclaimed water in the mid-Atlantic United States. The prevalence of ESBL producers was low and phenotypic resistance to cephalosporins (types of β-lactam antibiotics) was affected by season but not water type. Data on antimicrobial resistance among E. coli populations in water can inform decisions on safety of irrigation water sources and One Health.
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Zakrzewski AJ, Chajęcka-Wierzchowska W, Zadernowska A. Short Communication: Low Prevalence of Clinically Important Antibiotic-Resistant Strains among Non-Pathogenic Genera of the Tribe Klebsielleae. Foods 2022; 11:foods11152270. [PMID: 35954039 PMCID: PMC9368219 DOI: 10.3390/foods11152270] [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: 06/27/2022] [Revised: 07/21/2022] [Accepted: 07/25/2022] [Indexed: 02/01/2023] Open
Abstract
Hafnia sp. and Serratia sp. belong to the Tribe Klebsielleae; although they are not considered pathogenic bacteria, there are many documented cases of diseases caused by these microorganisms. The aim of this study was to determine the antibiotic resistance profiles of strains belonging to the genus Hafnia and Serratia isolated from fish and shrimps. Phenotypic antibiotic resistance was determined using the semi-automatic Vitek 2 system (bioMérieux, Marcy-l’Étoile, France), while the presence of the extended-spectrum beta-lactamase, AmpC beta-lactamases, Klebsiella pneumoniae carbapenemases and Metallo-β-Lactamase producing strains were determined using the MIC Test Strip (Liofilchem, Roseto degli Abbruzzi, Italy). As a result of the conducted research, it was observed that a vast number of Hafnia sp. strains were resistant to cefalexin (84.61%), while Serratia sp. Strains to cefuroxime (79.41%) and nitrofurantoin (85.29%). In addition, it was observed that of all strains, only one had an ability to produce enzymes typical for β-lactamase-producing Enterobacterales. Although the strains of Hafnia sp. and Serratia sp. isolated from fish and shrimp are not characterized by frequent resistance to antibiotics, taking into account the constantly growing number of antibiotic-resistant strains, this may be a problem in the future, mainly due to gene transfer through mobile genetic elements and the acquisition of resistance expressed phenotypically through contact with stress factors. Therefore, studies monitoring the antibiotic resistance profile of these species should be carried out on a regular basis.
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Occurrence of Extended Spectrum Cephalosporin-, Carbapenem- and Colistin-Resistant Gram-Negative Bacteria in Fresh Vegetables, an Increasing Human Health Concern in Algeria. Antibiotics (Basel) 2022; 11:antibiotics11080988. [PMID: 35892378 PMCID: PMC9332692 DOI: 10.3390/antibiotics11080988] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2022] [Revised: 06/29/2022] [Accepted: 07/04/2022] [Indexed: 02/06/2023] Open
Abstract
The aim of this study was to screen for extended spectrum cephalosporin-, carbapenem- and colistin-resistant Gram-negative bacteria in fresh vegetables in Batna, Algeria. A total of 400 samples of fresh vegetables were collected from different retail stores. Samples were immediately subjected to selective isolation, then the representative colonies were identified using matrix-assisted laser desorption ionisation time-of-flight mass spectrometry (MALDI-TOF–MS). Phenotypic and genotypic analyses were carried out in terms of species identification and relative antibiotic resistance. Transferability of the carbapenemase and mcr-bearing plasmids was verified by conjugation. The clonal relationships of carbapenemase and mcr-positive Escherichia coli isolates were studied by multi-locus sequence typing (MLST). Sixty-seven isolates were characterised and were mostly isolated from green leafy vegetables, where the dominant species identified included Citrobacter freundii, Klebsiella pneumoniae, Enterobacter cloacae, Stenotrophomona maltophilia, E. coli and Citrobacter braakii. PCR and sequencing results showed that E. coli was the bacterial species presenting the highest antibiotic resistance level in parallel to blaTEM (n = 16) and blaCTX-M-15 (n = 11), which were the most detected genes. Moreover, five isolates carried carbapenemase genes, including the blaOXA-48 and/or blaVIM-4 genes. The mcr-1 gene was detected in two E. coli isolates. MLST analysis revealed three different E. coli sequence types: ST101 (n = 1), ST216 (n = 1) and ST2298 (n = 1). Conjugation assays confirmed the transferability of the blaOXA-48 and mcr-1 genes. In this study we report, for the first time, the detection of the blaOXA-48 gene in E. coli and C. braakii isolates and the blaVIM-4 gene in vegetables. To the best of our knowledge, this is the first report on the detection of mcr-1 genes from vegetables in Algeria.
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18
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Díaz-Gavidia C, Barría C, Weller DL, Salgado-Caxito M, Estrada EM, Araya A, Vera L, Smith W, Kim M, Moreno-Switt AI, Olivares-Pacheco J, Adell AD. Humans and Hoofed Livestock Are the Main Sources of Fecal Contamination of Rivers Used for Crop Irrigation: A Microbial Source Tracking Approach. Front Microbiol 2022; 13:768527. [PMID: 35847115 PMCID: PMC9279616 DOI: 10.3389/fmicb.2022.768527] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2021] [Accepted: 05/19/2022] [Indexed: 12/01/2022] Open
Abstract
Freshwater bodies receive waste, feces, and fecal microorganisms from agricultural, urban, and natural activities. In this study, the probable sources of fecal contamination were determined. Also, antibiotic resistant bacteria (ARB) were detected in the two main rivers of central Chile. Surface water samples were collected from 12 sampling sites in the Maipo (n = 8) and Maule Rivers (n = 4) every 3 months, from August 2017 until April 2019. To determine the fecal contamination level, fecal coliforms were quantified using the most probable number (MPN) method and the source of fecal contamination was determined by Microbial Source Tracking (MST) using the Cryptosporidium and Giardia genotyping method. Separately, to determine if antimicrobial resistance bacteria (AMB) were present in the rivers, Escherichia coli and environmental bacteria were isolated, and the antibiotic susceptibility profile was determined. Fecal coliform levels in the Maule and Maipo Rivers ranged between 1 and 130 MPN/100-ml, and 2 and 30,000 MPN/100-ml, respectively. Based on the MST results using Cryptosporidium and Giardia host-specific species, human, cattle, birds, and/or dogs hosts were the probable sources of fecal contamination in both rivers, with human and cattle host-specific species being more frequently detected. Conditional tree analysis indicated that coliform levels were significantly associated with the river system (Maipo versus Maule), land use, and season. Fecal coliform levels were significantly (p < 0.006) higher at urban and agricultural sites than at sites immediately downstream of treatment centers, livestock areas, or natural areas. Three out of eight (37.5%) E. coli isolates presented a multidrug-resistance (MDR) phenotype. Similarly, 6.6% (117/1768) and 5.1% (44/863) of environmental isolates, in Maipo and Maule River showed and MDR phenotype. Efforts to reduce fecal discharge into these rivers should thus focus on agriculture and urban land uses as these areas were contributing the most and more frequently to fecal contamination into the rivers, while human and cattle fecal discharges were identified as the most likely source of this fecal contamination by the MST approach. This information can be used to design better mitigation strategies, thereby reducing the burden of waterborne diseases and AMR in Central Chile.
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Affiliation(s)
- Constanza Díaz-Gavidia
- Escuela de Medicina Veterinaria, Facultad de Ciencias de la Vida, Universidad Andres Bello, Santiago, Chile
- Millennium Initiative for Collaborative Research on Bacterial Resistance (MICROB-R), Santiago, Chile
| | - Carla Barría
- Escuela de Medicina Veterinaria, Facultad de Ciencias de la Vida, Universidad Andres Bello, Santiago, Chile
- Millennium Initiative for Collaborative Research on Bacterial Resistance (MICROB-R), Santiago, Chile
| | - Daniel L. Weller
- Department of Environmental and Forest Biology, College of Environmental Science and Forestry, State University of New York, Syracuse, NY, United States
- Department of Biostatistics and Computational Biology, University of Rochester Medical Center, Rochester, NY, United States
| | - Marilia Salgado-Caxito
- Millennium Initiative for Collaborative Research on Bacterial Resistance (MICROB-R), Santiago, Chile
- Escuela de Medicina Veterinaria, Facultad de Agronomía e Ingeniería Forestal, Facultad de Ciencias Biológicas y Facultad de Medicina, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Erika M. Estrada
- Department of Food Science and Technology, Eastern Shore Agricultural Research and Extension Center, Virginia Tech, Painter, Virginia
| | - Aníbal Araya
- Millennium Initiative for Collaborative Research on Bacterial Resistance (MICROB-R), Santiago, Chile
- Grupo de Resistencia Antimicrobiana en Bacterias Patógenas y Ambientales (GRABPA), Instituto de Biología, Pontificia Universidad Católica de Valparaíso, Valparaiso, Chile
| | - Leonardo Vera
- Escuela Ingeniería Ambiental, Facultad de Ciencias de la Vida, Universidad Andres Bello, Santiago, Chile
| | - Woutrina Smith
- One Health Institute, School of Veterinary Medicine, University of California, Davis, Davis, CA, United States
| | - Minji Kim
- Department of Civil and Environmental Engineering, University of California, Davis, Davis, CA, United States
| | - Andrea I. Moreno-Switt
- Millennium Initiative for Collaborative Research on Bacterial Resistance (MICROB-R), Santiago, Chile
- Escuela de Medicina Veterinaria, Facultad de Agronomía e Ingeniería Forestal, Facultad de Ciencias Biológicas y Facultad de Medicina, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Jorge Olivares-Pacheco
- Millennium Initiative for Collaborative Research on Bacterial Resistance (MICROB-R), Santiago, Chile
- Grupo de Resistencia Antimicrobiana en Bacterias Patógenas y Ambientales (GRABPA), Instituto de Biología, Pontificia Universidad Católica de Valparaíso, Valparaiso, Chile
| | - Aiko D. Adell
- Escuela de Medicina Veterinaria, Facultad de Ciencias de la Vida, Universidad Andres Bello, Santiago, Chile
- Millennium Initiative for Collaborative Research on Bacterial Resistance (MICROB-R), Santiago, Chile
- *Correspondence: Aiko D. Adell,
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19
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Kusi J, Ojewole CO, Ojewole AE, Nwi-Mozu I. Antimicrobial Resistance Development Pathways in Surface Waters and Public Health Implications. Antibiotics (Basel) 2022; 11:antibiotics11060821. [PMID: 35740227 PMCID: PMC9219700 DOI: 10.3390/antibiotics11060821] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2022] [Revised: 06/12/2022] [Accepted: 06/14/2022] [Indexed: 01/03/2023] Open
Abstract
Human health is threatened by antibiotic-resistant bacteria and their related infections, which cause thousands of human deaths every year worldwide. Surface waters are vulnerable to human activities and natural processes that facilitate the emergence and spread of antibiotic-resistant bacteria in the environment. This study evaluated the pathways and drivers of antimicrobial resistance (AR) in surface waters. We analyzed antibiotic resistance healthcare-associated infection (HAI) data reported to the CDC's National Healthcare Safety Network to determine the number of antimicrobial-resistant pathogens and their isolates detected in healthcare facilities. Ten pathogens and their isolates associated with HAIs tested resistant to the selected antibiotics, indicating the role of healthcare facilities in antimicrobial resistance in the environment. The analyzed data and literature research revealed that healthcare facilities, wastewater, agricultural settings, food, and wildlife populations serve as the major vehicles for AR in surface waters. Antibiotic residues, heavy metals, natural processes, and climate change were identified as the drivers of antimicrobial resistance in the aquatic environment. Food and animal handlers have a higher risk of exposure to resistant pathogens through ingestion and direct contact compared with the general population. The AR threat to public health may grow as pathogens in aquatic systems adjust to antibiotic residues, contaminants, and climate change effects. The unnecessary use of antibiotics increases the risk of AR, and the public should be encouraged to practice antibiotic stewardship to decrease the risk.
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Affiliation(s)
- Joseph Kusi
- Department of Environmental Sciences, Southern Illinois University Edwardsville, 44 Circle Drive, Campus Box 1099, Edwardsville, IL 62026, USA; (C.O.O.); (A.E.O.)
- Correspondence:
| | - Catherine Oluwalopeye Ojewole
- Department of Environmental Sciences, Southern Illinois University Edwardsville, 44 Circle Drive, Campus Box 1099, Edwardsville, IL 62026, USA; (C.O.O.); (A.E.O.)
| | - Akinloye Emmanuel Ojewole
- Department of Environmental Sciences, Southern Illinois University Edwardsville, 44 Circle Drive, Campus Box 1099, Edwardsville, IL 62026, USA; (C.O.O.); (A.E.O.)
| | - Isaac Nwi-Mozu
- Schmid College of Science and Technology, Chapman University, One University Drive, Orange, CA 92866, USA;
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20
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Microbial Community Structure and Bacterial Lineages Associated with Sulfonamides Resistance in Anthropogenic Impacted Larut River. WATER 2022. [DOI: 10.3390/w14071018] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
Anthropogenic activities often contribute to antibiotic resistance in aquatic environments. Larut River Malaysia is polluted with both organic and inorganic pollutants from domestic and industrial wastewater that are probably treated inadequately. The river is characterized by high biochemical oxygen demand, chemical oxygen demand, total suspended solids, ammonia, and heavy metals. In our previous study, sulfonamides (SAs) and sulfonamide resistance genes (sul) were detected in the Larut River. Hence, in this study, we further examined the microbial community structure, diversity of sulfonamide-resistant bacteria (SARB), and their resistance genes. The study also aimed at identifying cultivable bacteria potential carriers of sul genes in the aquatic environment. Proteobacteria (22.4–66.0%), Firmicutes (0.8–41.6%), Bacteroidetes (2.0–29.4%), and Actinobacteria (5.5–27.9%) were the most dominant phyla in both the effluents and river waters. SARB isolated consisted only 4.7% of the total genera identified, with SAR Klebsiella as the most dominant (38.0–61.3%) followed by SAR Escherichia (0–22.2%) and Acinetobacter (3.2–16.0%). The majority of the SAR Klebsiella isolated from the effluents and middle downstream were positive for sul genes. Sul genes-negative SAR Escherichia and Acinetobacter were low (<20%). Canonical-correlation analysis (CCA) showed that SAs residues and inorganic nutrients exerted significant impacts on microbial community and total sul genes. Network analysis identified 11 SARB as potential sul genes bacterial carriers. These findings indicated that anthropogenic activities exerted impacts on the microbial community structure and SAs resistance in the Larut River.
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21
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Karikari AB, Kpordze SW, Yamik DY, Saba CKS. Ready-to-Eat Food as Sources of Extended-Spectrum β-Lactamase-Producing Salmonella and E. coli in Tamale, Ghana. FRONTIERS IN TROPICAL DISEASES 2022. [DOI: 10.3389/fitd.2022.834048] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
The existence of antimicrobial-resistant pathogens in ready-to-eat food is an emerging public health concern. We evaluated the presence of extended-spectrum β-lactamase (ESBL)-producing Escherichia coli and Salmonella species in street food in Tamale, as well as their antibiotic resistance profiles. Samples (42 salad samples and 71 fufu samples) purchased from 113 food vendors in the metropolis were analyzed by selective enrichment and plated onto chromogenic media. The Kirby–Bauer disk diffusion method was used to determine the susceptibility to antibiotics and phenotypic ESBL production. Positive phenotypic analysis for ESBL production was shown in 55.4% (41/74) of E. coli and 44.6% (33/74) of Salmonella species. Antibiotic resistance characterization showed that ESBL strains from salad were completely sensitive to imipenem and chloramphenicol but mostly resistant to cefotaxime (70.0%), ceftriaxone (85.0%), and ceftazidime (70.0%). Nonetheless, 24.1% of ESBL strains from fufu were resistant to imipenem and least resistant to gentamicin (3.7%). In-vitro, E. coli were highly susceptible to ciprofloxacin, gentamicin, and erythromycin, as Salmonella species were more sensitive to imipenem and chloramphenicol; but in both species, resistance to β-lactam drugs was most prevalent. Multiple drug resistance was found in the entire ESBL strains of E. coli and Salmonella species (100%) with respective multiple antibiotic resistance (MAR) indices of 0.56 and 0.48 presented by E. coli and Salmonella species. Our study demonstrated the occurrence of ESBL-producing pathogens in vegetable salads and fufu. The existence of pathogenic bacteria in food is a public health threat and becomes more alarming when the pathogens are endowed with resistant features; thus, policies to combat antimicrobial resistance should be implemented and food safety prioritized.
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22
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Isolation of AmpC- and extended spectrum β-lactamase-producing Enterobacterales from fresh vegetables in the United States. Food Control 2022; 132:108559. [PMID: 34629764 PMCID: PMC8494183 DOI: 10.1016/j.foodcont.2021.108559] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
Vegetables may serve as a reservoir for antibiotic resistant bacteria and resistance genes. AmpC β-lactamases and extended spectrum beta-lactamases (ESBL) inactivate commonly used β-lactam antibiotics, including penicillins and cephalosporins. In this study, we determined the prevalence of AmpC and ESBL-producing Enterobacterales in retail vegetables in the United States. A total of 88 vegetable samples were collected for the screening of AmpC and ESBL-producing Enterobacterales using CHROMagar ESBL agar. These vegetables included washed ready-to-eat salad (23), microgreens/sprouts (13), lettuce (11), herbs (11), spinach (5), mushrooms (5), brussels sprouts (4), kale (3), and other vegetable samples (13). AmpC and ESBL activity in these isolates were determined using double disk combination tests. Two vegetable samples (2.27%), organic basil and brussels sprouts, were positive for AmpC-producing Enterobacterales and eight samples (9.09%), including bean sprouts, organic parsley, organic baby spinach, and several mixed salads, were positive for ESBL-producing Enterobacterales. Whole genome sequencing was used to identify the bacterial species and resistance genes in these isolates. Genes encoding AmpC β-lactamases were found in Enterobacter hormaechei strains S43-1 and 74-2, which were consistent with AmpC production phenotypes. Multidrug-resistant E. hormaechei strains S11-1, S17-1, and S45-4 possess an ESBL gene, blaSHV66 , whereas five Serratia fonticola isolates contain genes encoding a minor ESBL, FONA-5. In addition, we used shotgun metagenomic sequencing approach to examine the microbiome and resistome profiles of three spinach samples. We found that Pseudomonas was the most prevalent bacteria genus in the spinach samples. Within the Enterobacteriaceae family, Enterobacter was the most abundant genus in the spinach samples. Moreover, antibiotic resistance genes encoding 12 major classes of antibiotics, including β-lactam antibiotics, aminoglycoside, macrolide, fluoroquinolone, and others, were found in these spinach samples. Therefore, vegetables can serve as an important vehicle for transmitting antibiotic resistance. The study highlights the need for antibiotic resistance surveillance in vegetable products.
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23
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Silva MBRD, Maffei DF, Moreira DA, Dias M, Mendes MA, Franco BDGDM. Agricultural practices in Brazilian organic farms and microbiological characteristics of samples collected along the production chain. J Appl Microbiol 2022; 132:1185-1196. [PMID: 34365710 DOI: 10.1111/jam.15247] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2021] [Revised: 07/18/2021] [Accepted: 08/02/2021] [Indexed: 11/29/2022]
Abstract
AIMS To gather data on agricultural practices in organic farms in Sao Paulo, Brazil, and evaluate their relationship with the microbiological characteristics of samples collected along the production chain. METHODS AND RESULTS Practices data were based on field observations and interviews with farmers in 10 selected organic lettuce producing farms. Counts of Enterobacteriaceae and surveys for Salmonella were performed in samples of lettuce (before and after washing), fertilizers, irrigation and washing water, all collected in the same farm. Water samples were also tested for total coliforms and generic Escherichia coli. Isolated Enterobacteriaceae were identified by MALDI-TOF MS. Contamination of lettuce was influenced by some agricultural practices: chicken manure-based fertilization resulted in higher Enterobacteriaceae counts in lettuce when compared to other types of manure, whereas pre-washed lettuces presented lower microbial counts than non-pre-washed samples. Salmonella was detected in one lettuce sample by qPCR. Escherichia coli was detected in all irrigation water samples. All sample types contained Enterobacteriaceae species commonly reported as opportunistic human pathogens. CONCLUSIONS The data highlight the need for improvement in the good agricultural practices in the studied farms. SIGNIFICANCE AND IMPACT OF THE STUDY This study provides information on agricultural practices and microbiological characteristics of organic lettuce, contributing to the development of more accurate risk assessments.
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Affiliation(s)
- Marcelo Belchior Rosendo da Silva
- Food Research Center (FoRC), Department of Food and Experimental Nutrition, Faculty of Pharmaceutical Sciences, University of Sao Paulo, Sao Paulo, SP, Brazil
| | - Daniele Fernanda Maffei
- Food Research Center (FoRC), Department of Food and Experimental Nutrition, Faculty of Pharmaceutical Sciences, University of Sao Paulo, Sao Paulo, SP, Brazil
- Department of Agri-food Industry, Food and Nutrition, ‟Luiz de Queiroz" College of Agriculture, University of Sao Paulo, Piracicaba, SP, Brazil
| | - Debora Andrade Moreira
- Food Research Center (FoRC), Department of Food and Experimental Nutrition, Faculty of Pharmaceutical Sciences, University of Sao Paulo, Sao Paulo, SP, Brazil
| | - Meriellen Dias
- Dempster MS Lab, Department of Chemical Engineering, Polytechnic School of University of Sao Paulo, Sao Paulo, SP, Brazil
| | - Maria Anita Mendes
- Dempster MS Lab, Department of Chemical Engineering, Polytechnic School of University of Sao Paulo, Sao Paulo, SP, Brazil
| | - Bernadette Dora Gombossy de Melo Franco
- Food Research Center (FoRC), Department of Food and Experimental Nutrition, Faculty of Pharmaceutical Sciences, University of Sao Paulo, Sao Paulo, SP, Brazil
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24
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Contamination of Fresh Produce with Antibiotic-Resistant Bacteria and Associated Risks to Human Health: A Scoping Review. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2021; 19:ijerph19010360. [PMID: 35010620 PMCID: PMC8744955 DOI: 10.3390/ijerph19010360] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/30/2021] [Revised: 12/19/2021] [Accepted: 12/22/2021] [Indexed: 02/06/2023]
Abstract
Fresh produce, when consumed raw, can be a source of exposure to antimicrobial residues, antimicrobial-resistant bacteria (ARB) and antimicrobial resistance genes (ARGs) of clinical importance. This review aims to determine: (1) the presence and abundance of antimicrobial residues, ARB and ARGs in fresh agricultural products sold in retail markets and consumed raw; (2) associated health risks in humans; and (3) pathways through which fresh produce becomes contaminated with ARB/ARGs. We searched the Ovid Medline, Web of Science and Hinari databases as well as grey literature, and identified 40 articles for inclusion. All studies investigated the occurrence of multidrug-resistant bacteria, and ten studies focused on ARGs in fresh produce, while none investigated antimicrobial residues. The most commonly observed ARB were E. coli (42.5%) followed by Klebsiella spp. (22.5%), and Salmonella spp. (20%), mainly detected on lettuce. Twenty-five articles mentioned health risks from consuming fresh produce but none quantified the risk. About half of the articles stated produce contamination occurred during pre- and post-harvest processes. Our review indicates that good agricultural and manufacturing practices, behavioural change communication and awareness-raising programs are required for all stakeholders along the food production and consumption supply chain to prevent ARB/ARG exposure through produce.
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25
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Vegetables and Fruit as a Reservoir of β-Lactam and Colistin-Resistant Gram-Negative Bacteria: A Review. Microorganisms 2021; 9:microorganisms9122534. [PMID: 34946136 PMCID: PMC8708060 DOI: 10.3390/microorganisms9122534] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2021] [Revised: 11/12/2021] [Accepted: 11/16/2021] [Indexed: 02/06/2023] Open
Abstract
Antibacterial resistance is one of the 2019 World Health Organization’s top ten threats to public health worldwide. Hence, the emergence of β-lactam and colistin resistance among Gram-negative bacteria has become a serious concern. The reservoirs for such bacteria are increasing not only in hospital settings but in several other sources, including vegetables and fruit. In recent years, fresh produce gained important attention due to its consumption in healthy diets combined with a low energy density. However, since fresh produce is often consumed raw, it may also be a source of foodborne disease and a reservoir for antibiotic resistant Gram-negative bacteria including those producing extended-spectrum β-lactamase, cephalosporinase and carbapenemase enzymes, as well as those harboring the plasmid-mediated colistin resistance (mcr) gene. This review aims to provide an overview of the currently available scientific literature on the presence of extended-spectrum β-lactamases, cephalosporinase, carbapenemase and mcr genes in Gram-negative bacteria in vegetables and fruit with a focus on the possible contamination pathways in fresh produce.
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26
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Culture dependent and independent detection of multiple extended beta-lactamase producing and biofilm forming Salmonella species from leafy vegetables. BIOCATALYSIS AND AGRICULTURAL BIOTECHNOLOGY 2021. [DOI: 10.1016/j.bcab.2021.102202] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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27
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Pintor-Cora A, Álvaro-Llorente L, Otero A, Rodríguez-Calleja JM, Santos JA. Extended-Spectrum Beta-Lactamase-Producing Enterobacteriaceae in Fresh Produce. Foods 2021; 10:foods10112609. [PMID: 34828891 PMCID: PMC8619215 DOI: 10.3390/foods10112609] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2021] [Revised: 10/22/2021] [Accepted: 10/25/2021] [Indexed: 11/16/2022] Open
Abstract
Fresh vegetables are an essential part of a healthy diet, but microbial contamination of fruits and vegetables is a serious concern to human health, not only for the presence of foodborne pathogens but because they can be a vehicle for the transmission of antibiotic-resistant bacteria. This work aimed to investigate the importance of fresh produce in the transmission of extended-spectrum β-lactamases (ESBL)-producing Enterobacteriaceae. A total of 174 samples of vegetables (117) and farm environment (57) were analysed to determine enterobacterial contamination and presence of ESBL-producing Enterobacteriaceae. Enterobacterial counts above the detection limit were found in 82.9% vegetable samples and 36.8% environmental samples. The average count was 4.2 log cfu/g or mL, with a maximum value of 6.2 log cfu/g in a parsley sample. Leafy vegetables showed statistically significant higher mean counts than other vegetables. A total of 15 ESBL-producing isolates were obtained from vegetables (14) and water (1) samples and were identified as Serratia fonticola (11) and Rahnella aquatilis (4). Five isolates of S. fonticola were considered multi-drug resistant. Even though their implication in human infections is rare, they can become an environmental reservoir of antibiotic-resistance genes that can be further disseminated along the food chain.
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28
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Yau YK, Mak WYJ, Lui NSR, Ng WYR, Cheung CYK, Li YLA, Ching YLJ, Chin ML, Lau HSL, Chan KLF, Chan KSP, Ng SC. High prevalence of extended-spectrum beta-lactamase organisms and the COVID-19 pandemic impact on donor recruitment for fecal microbiota transplantation in Hong Kong. United European Gastroenterol J 2021; 9:1027-1038. [PMID: 34623758 PMCID: PMC8598959 DOI: 10.1002/ueg2.12160] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/21/2021] [Revised: 08/23/2021] [Accepted: 08/24/2021] [Indexed: 02/06/2023] Open
Abstract
Background With increasing number of clinical trials relating to fecal microbiota transplantation (FMT), it is crucial to identify and recruit long‐term, healthy, and regular fecal donors. Objective We aimed to report the outcomes of screening and recruitment of fecal donors for FMT. Methods Potential donors were recruited via advertisement through internal mass emails at a university. They were required to undergo a pre‐screening telephone interview, a detailed questionnaire, followed by blood and stool investigations. Results From January 2017 to December 2020, 119 potential donors were assessed with 75 failed pre‐screening. Reasons for failure included: inability to come back for regular and long‐term donation (n = 19), high body mass index (n = 17), underlying chronic illness or on long‐term medications (n = 11), being healthcare professionals (n = 10), use of antibiotics within 3 months (n = 5) and others (n = 13). Forty‐four donors completed questionnaires and 11 did not fulfill the clinical criteria. Of the remaining 33 potential donors who had stool and blood tests, 21 failed stool investigations (19 extended‐spectrum beta‐lactamase [ESBL] organisms, one Clostridioides difficile, one C. difficile plus Methicillin Resistant Staphylococcus aureus), one failed blood tests (high serum alkaline phosphatase level), one required long‐term medication and nine withdrew consent and/or lost to follow‐up. In total, only one out of 119 (0.8%) potential donors was successfully recruited as a regular donor. Conclusion There was a high failure rate in donor screening for FMT. Main reasons for screening failure included high prevalence of positive ESBL organisms in stool and failed commitment to regular stool donation.
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Affiliation(s)
- Yuk Kam Yau
- Center for Gut Microbiota Research, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, China.,Department of Medicine & Therapeutics, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, China
| | - Wing Yan Joyce Mak
- Center for Gut Microbiota Research, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, China.,Department of Medicine & Therapeutics, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, China
| | - Nok Shun Rashid Lui
- Department of Medicine & Therapeutics, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, China
| | - Wai Yin Rita Ng
- Center for Gut Microbiota Research, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, China.,Department of Microbiology, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, China
| | - Choi Yan Kitty Cheung
- Center for Gut Microbiota Research, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, China.,Department of Medicine & Therapeutics, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, China
| | - Ying Lee Amy Li
- Center for Gut Microbiota Research, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, China.,Department of Medicine & Therapeutics, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, China
| | - Yuet Ling Jessica Ching
- Center for Gut Microbiota Research, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, China.,Department of Medicine & Therapeutics, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, China
| | - Miu Ling Chin
- Center for Gut Microbiota Research, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, China.,Department of Microbiology, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, China
| | - Ho Shing Louis Lau
- Department of Medicine & Therapeutics, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, China
| | - Ka Leung Francis Chan
- Center for Gut Microbiota Research, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, China.,Department of Medicine & Therapeutics, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, China.,LKS Institute of Health Science, The Chinese University of Hong Kong, Hong Kong, China
| | - Kay Sheung Paul Chan
- Center for Gut Microbiota Research, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, China.,Department of Microbiology, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, China
| | - Siew Chien Ng
- Center for Gut Microbiota Research, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, China.,Department of Medicine & Therapeutics, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, China.,LKS Institute of Health Science, The Chinese University of Hong Kong, Hong Kong, China
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29
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Pot M, Reynaud Y, Couvin D, Ducat C, Ferdinand S, Gravey F, Gruel G, Guérin F, Malpote E, Breurec S, Talarmin A, Guyomard-Rabenirina S. Wide Distribution and Specific Resistance Pattern to Third-Generation Cephalosporins of Enterobacter cloacae Complex Members in Humans and in the Environment in Guadeloupe (French West Indies). Front Microbiol 2021; 12:628058. [PMID: 34248862 PMCID: PMC8268024 DOI: 10.3389/fmicb.2021.628058] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2020] [Accepted: 05/31/2021] [Indexed: 11/25/2022] Open
Abstract
Species belonging to Enterobacter cloacae complex have been isolated in numerous environments and samples of various origins. They are also involved in opportunistic infections in plants, animals, and humans. Previous prospection in Guadeloupe (French West Indies) indicated a high frequency of E. cloacae complex strains resistant to third-generation cephalosporins (3GCs) in a local lizard population (Anolis marmoratus), but knowledge of the distribution and resistance of these strains in humans and the environment is limited. The aim of this study was to compare the distribution and antibiotic susceptibility pattern of E. cloacae complex members from different sources in a “one health” approach and to find possible explanations for the high level of resistance in non-human samples. E. cloacae complex strains were collected between January 2017 and the end of 2018 from anoles, farm animals, local fresh produce, water, and clinical human samples. Isolates were characterized by the heat-shock protein 60 gene-fragment typing method, and whole-genome sequencing was conducted on the most frequent clusters (i.e., C-VI and C-VIII). The prevalence of resistance to 3GCs was relatively high (56/346, 16.2%) in non-human samples. The associated resistance mechanism was related to an AmpC overproduction; however, in human samples, most of the resistant strains (40/62) produced an extended-spectrum beta-lactamase. No relation was found between resistance in isolates from wild anoles (35/168) and human activities. Specific core-genome phylogenetic analysis highlighted an important diversity in this bacterial population and no wide circulation among the different compartments. In our setting, the mutations responsible for resistance to 3GCs, especially in ampD, were diverse and not compartment specific. In conclusion, high levels of resistance in non-human E. cloacae complex isolates are probably due to environmental factors that favor the selection of these resistant strains, and this will be explored further.
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Affiliation(s)
- Matthieu Pot
- Transmission, Reservoir and Diversity of Pathogens Unit, Pasteur Institute of Guadeloupe, Les Abymes, France
| | - Yann Reynaud
- Transmission, Reservoir and Diversity of Pathogens Unit, Pasteur Institute of Guadeloupe, Les Abymes, France
| | - David Couvin
- Transmission, Reservoir and Diversity of Pathogens Unit, Pasteur Institute of Guadeloupe, Les Abymes, France
| | - Célia Ducat
- Transmission, Reservoir and Diversity of Pathogens Unit, Pasteur Institute of Guadeloupe, Les Abymes, France
| | - Séverine Ferdinand
- Transmission, Reservoir and Diversity of Pathogens Unit, Pasteur Institute of Guadeloupe, Les Abymes, France
| | - François Gravey
- GRAM 2.0, Normandie University, UNICAEN, UNIROUEN, Caen, France
| | - Gaëlle Gruel
- Transmission, Reservoir and Diversity of Pathogens Unit, Pasteur Institute of Guadeloupe, Les Abymes, France
| | - François Guérin
- GRAM 2.0, Normandie University, UNICAEN, UNIROUEN, Caen, France.,Department of Clinical Microbiology, Caen University Hospital, Caen, France
| | - Edith Malpote
- Laboratory of Clinical Microbiology, University Hospital of Guadeloupe, Pointe-à-Pitre/Les Abymes, France
| | - Sébastien Breurec
- Transmission, Reservoir and Diversity of Pathogens Unit, Pasteur Institute of Guadeloupe, Les Abymes, France.,Faculty of Medicine Hyacinthe Bastaraud, University of the Antilles, Pointe-à-Pitre, France.,Centre for Clinical Investigation 1424, INSERM, Pointe-à-Pitre/Les Abymes, France
| | - Antoine Talarmin
- Transmission, Reservoir and Diversity of Pathogens Unit, Pasteur Institute of Guadeloupe, Les Abymes, France
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Koutsoumanis K, Allende A, Álvarez‐Ordóñez A, Bolton D, Bover‐Cid S, Chemaly M, Davies R, De Cesare A, Herman L, Hilbert F, Lindqvist R, Nauta M, Ru G, Simmons M, Skandamis P, Suffredini E, Argüello H, Berendonk T, Cavaco LM, Gaze W, Schmitt H, Topp E, Guerra B, Liébana E, Stella P, Peixe L. Role played by the environment in the emergence and spread of antimicrobial resistance (AMR) through the food chain. EFSA J 2021; 19:e06651. [PMID: 34178158 PMCID: PMC8210462 DOI: 10.2903/j.efsa.2021.6651] [Citation(s) in RCA: 57] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
The role of food-producing environments in the emergence and spread of antimicrobial resistance (AMR) in EU plant-based food production, terrestrial animals (poultry, cattle and pigs) and aquaculture was assessed. Among the various sources and transmission routes identified, fertilisers of faecal origin, irrigation and surface water for plant-based food and water for aquaculture were considered of major importance. For terrestrial animal production, potential sources consist of feed, humans, water, air/dust, soil, wildlife, rodents, arthropods and equipment. Among those, evidence was found for introduction with feed and humans, for the other sources, the importance could not be assessed. Several ARB of highest priority for public health, such as carbapenem or extended-spectrum cephalosporin and/or fluoroquinolone-resistant Enterobacterales (including Salmonella enterica), fluoroquinolone-resistant Campylobacter spp., methicillin-resistant Staphylococcus aureus and glycopeptide-resistant Enterococcus faecium and E. faecalis were identified. Among highest priority ARGs bla CTX -M, bla VIM, bla NDM, bla OXA -48-like, bla OXA -23, mcr, armA, vanA, cfr and optrA were reported. These highest priority bacteria and genes were identified in different sources, at primary and post-harvest level, particularly faeces/manure, soil and water. For all sectors, reducing the occurrence of faecal microbial contamination of fertilisers, water, feed and the production environment and minimising persistence/recycling of ARB within animal production facilities is a priority. Proper implementation of good hygiene practices, biosecurity and food safety management systems is very important. Potential AMR-specific interventions are in the early stages of development. Many data gaps relating to sources and relevance of transmission routes, diversity of ARB and ARGs, effectiveness of mitigation measures were identified. Representative epidemiological and attribution studies on AMR and its effective control in food production environments at EU level, linked to One Health and environmental initiatives, are urgently required.
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Junaid K, Ejaz H, Asim I, Younas S, Yasmeen H, Abdalla AE, Abosalif KOA, Alameen AAM, Ahmad N, Bukhari SNA, Rehman A. Heavy Metal Tolerance Trend in Extended-Spectrum β-Lactamase Encoding Strains Recovered from Food Samples. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2021; 18:ijerph18094718. [PMID: 33925201 PMCID: PMC8124721 DOI: 10.3390/ijerph18094718] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/06/2021] [Revised: 04/27/2021] [Accepted: 04/27/2021] [Indexed: 02/06/2023]
Abstract
This study evaluates bacteriological profiles in ready-to-eat (RTE) foods and assesses antibiotic resistance, extended-spectrum β-lactamase (ESBL) production by gram-negative bacteria, and heavy metal tolerance. In total, 436 retail food samples were collected and cultured. The isolates were screened for ESBL production and molecular detection of ESBL-encoding genes. Furthermore, all isolates were evaluated for heavy metal tolerance. From 352 culture-positive samples, 406 g-negative bacteria were identified. Raw food samples were more often contaminated than refined food (84.71% vs. 76.32%). The predominant isolates were Klebsiella pneumoniae (n = 76), Enterobacter cloacae (n = 58), and Escherichia coli (n = 56). Overall, the percentage of ESBL producers was higher in raw food samples, although higher occurrences of ESBL-producing E. coli (p = 0.01) and Pseudomonas aeruginosa (p = 0.02) were observed in processed food samples. However, the prevalence of ESBL-producing Citrobacter freundii in raw food samples was high (p = 0.03). Among the isolates, 55% were blaCTX-M, 26% were blaSHV, and 19% were blaTEM. Notably, heavy metal resistance was highly prevalent in ESBL producers. These findings demonstrate that retail food samples are exposed to contaminants including antibiotics and heavy metals, endangering consumers.
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Affiliation(s)
- Kashaf Junaid
- Department of Clinical Laboratory Sciences, College of Applied Medical Sciences, Jouf University, Skaka 72388, Saudi Arabia; (H.E.); (A.E.A.); (K.O.A.A.); (A.A.M.A.)
- Correspondence: ; Tel.: +966-55-237-8576
| | - Hasan Ejaz
- Department of Clinical Laboratory Sciences, College of Applied Medical Sciences, Jouf University, Skaka 72388, Saudi Arabia; (H.E.); (A.E.A.); (K.O.A.A.); (A.A.M.A.)
| | - Iram Asim
- Department of Microbiology and Molecular Genetics, The Women University, Multan 66000, Pakistan; (I.A.); (H.Y.)
| | - Sonia Younas
- Department of Pathology, Tehsil Headquarter Hospital Kamoke, Kamoke 50661, Pakistan;
| | - Humaira Yasmeen
- Department of Microbiology and Molecular Genetics, The Women University, Multan 66000, Pakistan; (I.A.); (H.Y.)
| | - Abualgasim Elgaili Abdalla
- Department of Clinical Laboratory Sciences, College of Applied Medical Sciences, Jouf University, Skaka 72388, Saudi Arabia; (H.E.); (A.E.A.); (K.O.A.A.); (A.A.M.A.)
| | - Khalid Omer Abdalla Abosalif
- Department of Clinical Laboratory Sciences, College of Applied Medical Sciences, Jouf University, Skaka 72388, Saudi Arabia; (H.E.); (A.E.A.); (K.O.A.A.); (A.A.M.A.)
| | - Ayman Ali Mohammed Alameen
- Department of Clinical Laboratory Sciences, College of Applied Medical Sciences, Jouf University, Skaka 72388, Saudi Arabia; (H.E.); (A.E.A.); (K.O.A.A.); (A.A.M.A.)
| | - Naveed Ahmad
- Department of Pharmaceutics, College of Pharmacy, Jouf University, Sakaka 72388, Saudi Arabia;
| | - Syed Nasir Abbas Bukhari
- Department of Pharmaceutical Chemistry, College of Pharmacy, Jouf University, Sakaka 72388, Saudi Arabia;
| | - Abdul Rehman
- Department of Microbiology and Molecular Genetics, University of the Punjab, Lahore 54590, Pakistan;
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Zalewska M, Błażejewska A, Czapko A, Popowska M. Antibiotics and Antibiotic Resistance Genes in Animal Manure - Consequences of Its Application in Agriculture. Front Microbiol 2021; 12:610656. [PMID: 33854486 PMCID: PMC8039466 DOI: 10.3389/fmicb.2021.610656] [Citation(s) in RCA: 80] [Impact Index Per Article: 26.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2020] [Accepted: 03/03/2021] [Indexed: 02/06/2023] Open
Abstract
Antibiotic resistance genes (ARGs) are a relatively new type of pollutant. The rise in antibiotic resistance observed recently is closely correlated with the uncontrolled and widespread use of antibiotics in agriculture and the treatment of humans and animals. Resistant bacteria have been identified in soil, animal feces, animal housing (e.g., pens, barns, or pastures), the areas around farms, manure storage facilities, and the guts of farm animals. The selection pressure caused by the irrational use of antibiotics in animal production sectors not only promotes the survival of existing antibiotic-resistant bacteria but also the development of new resistant forms. One of the most critical hot-spots related to the development and dissemination of ARGs is livestock and poultry production. Manure is widely used as a fertilizer thanks to its rich nutrient and organic matter content. However, research indicates that its application may pose a severe threat to human and animal health by facilitating the dissemination of ARGs to arable soil and edible crops. This review examines the pathogens, potentially pathogenic microorganisms and ARGs which may be found in animal manure, and evaluates their effect on human health through their exposure to soil and plant resistomes. It takes a broader view than previous studies of this topic, discussing recent data on antibiotic use in farm animals and the effect of these practices on the composition of animal manure; it also examines how fertilization with animal manure may alter soil and crop microbiomes, and proposes the drivers of such changes and their consequences for human health.
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Affiliation(s)
- Magdalena Zalewska
- Department of Bacterial Physiology, Institute of Microbiology, Faculty of Biology, University of Warsaw, Warsaw, Poland
| | - Aleksandra Błażejewska
- Department of Bacterial Physiology, Institute of Microbiology, Faculty of Biology, University of Warsaw, Warsaw, Poland
| | - Agnieszka Czapko
- Department of Bacterial Physiology, Institute of Microbiology, Faculty of Biology, University of Warsaw, Warsaw, Poland
| | - Magdalena Popowska
- Department of Bacterial Physiology, Institute of Microbiology, Faculty of Biology, University of Warsaw, Warsaw, Poland
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Antimicrobial Resistance Profile and ExPEC Virulence Potential in Commensal Escherichia coli of Multiple Sources. Antibiotics (Basel) 2021; 10:antibiotics10040351. [PMID: 33810387 PMCID: PMC8067153 DOI: 10.3390/antibiotics10040351] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2021] [Revised: 03/18/2021] [Accepted: 03/19/2021] [Indexed: 02/06/2023] Open
Abstract
We recently described the genetic antimicrobial resistance and virulence profile of a collection of 279 commensal E. coli of food-producing animal (FPA), pet, wildlife and human origin. Phenotypic antimicrobial resistance (AMR) and the role of commensal E. coli as reservoir of extra-intestinal pathogenic Escherichia coli (ExPEC) virulence-associated genes (VAGs) or as potential ExPEC pathogens were evaluated. The most common phenotypic resistance was to tetracycline (76/279, 27.24%), sulfamethoxazole/trimethoprim (73/279, 26.16%), streptomycin and sulfisoxazole (71/279, 25.45% both) among the overall collection. Poultry and rabbit were the sources mostly associated to AMR, with a significant resistance rate (p > 0.01) to quinolones, streptomycin, sulphonamides, tetracycline and, only for poultry, to ampicillin and chloramphenicol. Finally, rabbit was the source mostly associated to colistin resistance. Different pandemic (ST69/69*, ST95, ST131) and emerging (ST10/ST10*, ST23, ST58, ST117, ST405, ST648) ExPEC sequence types (STs) were identified among the collection, especially in poultry source. Both ST groups carried high number of ExPEC VAGs (pandemic ExPEC STs, mean = 8.92; emerging ExPEC STs, mean = 6.43) and showed phenotypic resistance to different antimicrobials (pandemic ExPEC STs, mean = 2.23; emerging ExPEC STs, mean = 2.43), suggesting their role as potential ExPEC pathogens. Variable phenotypic resistance and ExPEC VAG distribution was also observed in uncommon ExPEC lineages, suggesting commensal flora as a potential reservoir of virulence (mean = 3.80) and antimicrobial resistance (mean = 1.69) determinants.
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Krahulcová M, Micajová B, Olejníková P, Cverenkárová K, Bírošová L. Microbial Safety of Smoothie Drinks from Fresh Bars Collected in Slovakia. Foods 2021; 10:551. [PMID: 33799940 PMCID: PMC8000542 DOI: 10.3390/foods10030551] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2021] [Revised: 02/28/2021] [Accepted: 03/04/2021] [Indexed: 02/06/2023] Open
Abstract
Among the many consumers in Slovakia, smoothies are nowadays gaining popularity. Smoothie drinks are prepared from raw fruits and vegetables. Therefore, their microbiological safety depends on hygiene standards. The aim of this work was to monitor and quantify selected sensitive and antibiotic-resistant microorganisms present in collected smoothies. Twenty analyzed smoothie samples were collected from six food service establishments (fresh bars) in the capital city of Slovakia, Bratislava. Antibiotic-resistant bacteria were found in at least one of each fresh bar. Antibiotic-resistant coliform bacteria prevailed, especially in green smoothies or juices containing more vegetable ingredients. Resistance to ampicillin, ciprofloxacin, tetracycline, chloramphenicol, and gentamicin was observed in the case of coliform bacteria. More than half of the smoothie drink samples did not contain resistant enterococci. On the other hand, vancomycin-resistant enterococci were detected in 20% of samples. The most frequently isolated antibiotic-resistant strains belonged to the Enterobacter spp. or Klebsiella spp. genus. In the last part of the work, the pretreatment effect of smoothie components on the selected microorganisms' counts in the final product was investigated. Washing ingredients with an aqueous solution of a biocide agent containing silver and hydrogen peroxide proved to be the most effective way to decrease bacterial counts.
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Affiliation(s)
- Monika Krahulcová
- Faculty of Chemical and Food Technology, Department of Nutrition and Food Quality Assessment, Slovak University of Technology, Radlinského 9, 81237 Bratislava, Slovakia; (B.M.); (K.C.); (L.B.)
| | - Barbora Micajová
- Faculty of Chemical and Food Technology, Department of Nutrition and Food Quality Assessment, Slovak University of Technology, Radlinského 9, 81237 Bratislava, Slovakia; (B.M.); (K.C.); (L.B.)
| | - Petra Olejníková
- Faculty of Chemical and Food Technology, Institute of Biochemistry and Microbiology, Slovak University of Technology, Radlinského 9, 81237 Bratislava, Slovakia;
| | - Klára Cverenkárová
- Faculty of Chemical and Food Technology, Department of Nutrition and Food Quality Assessment, Slovak University of Technology, Radlinského 9, 81237 Bratislava, Slovakia; (B.M.); (K.C.); (L.B.)
| | - Lucia Bírošová
- Faculty of Chemical and Food Technology, Department of Nutrition and Food Quality Assessment, Slovak University of Technology, Radlinského 9, 81237 Bratislava, Slovakia; (B.M.); (K.C.); (L.B.)
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Cerqueira F, Christou A, Fatta-Kassinos D, Vila-Costa M, Bayona JM, Piña B. Effects of prescription antibiotics on soil- and root-associated microbiomes and resistomes in an agricultural context. JOURNAL OF HAZARDOUS MATERIALS 2020; 400:123208. [PMID: 32593021 DOI: 10.1016/j.jhazmat.2020.123208] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/07/2020] [Revised: 05/22/2020] [Accepted: 06/11/2020] [Indexed: 05/23/2023]
Abstract
The use of treated wastewater for crop irrigation is rapidly increasing to respond to the ever-growing demands for water and food resources. However, this practice may contribute to the spread of antibiotic resistant bacteria (ARB) and antibiotic resistant genes (ARGs) in agricultural settings. To evaluate this potential risk, we analyzed microbiomes and resistomes of soil and Lactuca sativa L. (lettuce) root samples from pots irrigated with tap water spiked with 0, 20, or 100 μg L-1 of a mixture of three antibiotics (Trimethoprim, Ofloxacin, Sulfamethoxazole). The presence of antibiotics induced changes in bacterial populations, particularly in soil, as revealed by 16S rDNA sequence analysis. Parallel shotgun sequencing identified a total of 56 different ARGs conferring resistance against 14 antibiotic families. Antibiotic -treated samples showed increased loads of ARGs implicated in mutidrug resistance or in both direct and indirect acquired resistance. These changes correlated with the prevalence of Xantomonadales species in the root microbiomes. We interpret these data as indicating different strategies of soil and root microbiomes to cope with the presence of antibiotics, and as a warning that their presence may increase the loads of ARBs and ARGs in edible plant parts, therefore constituting a potential risk for human consumers.
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Affiliation(s)
- Francisco Cerqueira
- Institute of Environmental Assessment and Water Research (IDAEA), Spanish National Research Council, Barcelona, Spain
| | - Anastasis Christou
- Agricultural Research Institute, Ministry of Agriculture, Rural Development and Environment, P.O. Box 22016, 1516, Nicosia, Cyprus
| | - Despo Fatta-Kassinos
- Civil and Environmental Engineering Department and Nireas, International Water Research Center, University of Cyprus, P.O. Box 20538, 1678, Nicosia, Cyprus
| | - Maria Vila-Costa
- Institute of Environmental Assessment and Water Research (IDAEA), Spanish National Research Council, Barcelona, Spain
| | - Josep Maria Bayona
- Institute of Environmental Assessment and Water Research (IDAEA), Spanish National Research Council, Barcelona, Spain
| | - Benjamin Piña
- Institute of Environmental Assessment and Water Research (IDAEA), Spanish National Research Council, Barcelona, Spain.
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Banjo OA, Adekanmbi AO, Oyelade AA. Occurrence of CTX-M, SHV and TEM β-lactamase genes in Extended Spectrum Beta-Lactamase (ESBL)- producing bacteria recovered from wastewater of a privately-owned hospital in Nigeria and a hand-dug well within its vicinity. GENE REPORTS 2020. [DOI: 10.1016/j.genrep.2020.100970] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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Prevalence of ESBL, AmpC and Carbapenemase-Producing Enterobacterales Isolated from Raw Vegetables Retailed in Romania. Foods 2020; 9:foods9121726. [PMID: 33255315 PMCID: PMC7760756 DOI: 10.3390/foods9121726] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2020] [Revised: 11/19/2020] [Accepted: 11/20/2020] [Indexed: 02/06/2023] Open
Abstract
(1) Background: As β-lactamase-producing Enterobacterales are no longer exclusively associated with the health care system, investigating the potential risk they pose to the integrity of the environment and food safety has become of utmost importance. This study aimed to determine the prevalence of extended-spectrum β-lactamase (ESBL), AmpC, and carbapenemase-producing Enterobacterales isolates from retailed raw vegetables and to determine if household washing is an effective method of lowering bacterial load; (2) Methods: Seasonal vegetables (n = 165) were acquired from supermarkets (n = 2) and farmer markets (n = 2) in Romania. Following sample processing and isolation, identification of Enterobacterales was performed by matrix-assisted laser desorption ionization time-of-flight mass spectrometry (MALDI-TOF). Polymerase chain reaction (PCR) multiplex was used to ascertain the presence of the main ESBL, AmpC, and Carbapenemase genes. Phenotypic antibiotic resistance profiles of isolates were determined by extended antibiograms. Enterobacteriaceae colony-forming units (CFU) counts were compared between vegetable types; (3) Results: Beta-lactamase producing bacteria were observed on 7.9% of vegetables, with 5.5% displaying ESBL/AmpC phenotype and 2.4% identified as Carbapenemase producers. The most frequently detected β-lactamase genes were blaSHV (n = 4), followed by blaCTX-M and blaTEM (each with n = 3). Phenotypic antibiotic resistance analysis showed that 46% of isolates were multiple drug resistant, with aminoglycosides (38.5%) the most prevalent non-β-lactam resistance, followed by first-generation quinolones (38.5%). (4) Conclusions: The present study has described for the first time the presence of β-lactamase producing Enterobacterales in fresh produce retailed in Romania.
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Song J, Oh SS, Kim J, Shin J. Extended-spectrum β-lactamase-producing Escherichia coli isolated from raw vegetables in South Korea. Sci Rep 2020; 10:19721. [PMID: 33184462 PMCID: PMC7661520 DOI: 10.1038/s41598-020-76890-w] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2020] [Accepted: 11/04/2020] [Indexed: 02/06/2023] Open
Abstract
The increasing prevalence of oxyimino-cephalosporin-resistant Enterobacteriaceae has become a global concern because of their clinical impact on both human and veterinary medicine. The present study determined the prevalence, antimicrobial susceptibility, and molecular genetic features of extended-spectrum β-lactamase (ESBL)-producing Escherichia coli (ESBL-EC) isolates from raw vegetables. A total of 1324 samples were collected from two agricultural wholesale markets in Incheon, South Korea in 2018. The ESBL-EC strains were isolated from 0.83% (11/1324) samples, and all of them were resistant to ampicillin, piperacillin, cefazoline, cefotaxime, and nalidixic acid and yielded CTX-M-type ESBL, including CTX-M-14, CTX-M-15, CTX-M-55, CTX-M-27, and CTX-M-65. The isolates belonged to phylogenetic subgroups D (n = 5), A (n = 4), and B1 (n = 2). Multilocus sequence typing revealed nine known E. coli sequence types (STs), including ST10, ST38, ST69, ST101, ST224, ST349, ST354, ST2509, ST2847, and two new STs. Notably, ST69, ST10, ST38, and ST354 belong to the major human-associated extraintestinal pathogenic E. coli lineages. Our results demonstrate that ESBL-producing multidrug-resistant pathogens may be transmitted to humans through the vegetable intake, highlighting the importance of resistance monitoring and intervention in the One Health perspective.
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Affiliation(s)
- Jihyun Song
- Department of Microbiology, Inha University College of Medicine, 100 Inha-ro, Nam-gu, Incheon, 22212, South Korea
| | - Sung-Suck Oh
- Incheon Research Institute of Public Health and Environment, Incheon, 22320, South Korea
| | - Junghee Kim
- Incheon Research Institute of Public Health and Environment, Incheon, 22320, South Korea
| | - Jinwook Shin
- Department of Microbiology, Inha University College of Medicine, 100 Inha-ro, Nam-gu, Incheon, 22212, South Korea.
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Sivaraman GK, Sudha S, Muneeb KH, Shome B, Holmes M, Cole J. Molecular assessment of antimicrobial resistance and virulence in multi drug resistant ESBL-producing Escherichia coli and Klebsiella pneumoniae from food fishes, Assam, India. Microb Pathog 2020; 149:104581. [PMID: 33080358 DOI: 10.1016/j.micpath.2020.104581] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2020] [Revised: 10/13/2020] [Accepted: 10/14/2020] [Indexed: 02/06/2023]
Abstract
The present study investigated the prevalence of Extended-Spectrum Beta Lactamase (ESBL) -producing E. coli and K. pneumoniae from the food fishes in retail markets in Assam, India. A total of 54 ESBL-producing E. coli and 12 K. pneumoniae isolates were recovered from 79 fish samples and were analyzed for antimicrobial resistance genes (ARGs) and virulence genes. E. coli isolates were categorized as multi drug resistant with resistance up to 12 different antibiotics with multiple antibiotic resistances (MAR) index ranging from 0.26 to 0.63. In E. coli, 100% resistance to cefotaxime along with 6% resistance to ceftazidime (third-generation cephalosporins) was observed. Moreover, 85% of the E. coli isolates were resistant to cefepime, a fourth-generation cephalosporin. K. pneumoniae showed resistance to 11 different antibiotics with MAR index value ranging from 0.21 to 0.57. All K. pneumoniae isolates showed 100% resistance to cefotaxime, 67% resistance to ceftazidime and 75% resistance to cefepime. Molecular characterization of ARGs revealed the presence of CTX-M group 1(CTX-M-15) in almost all E. coli isolates (98%, n = 53) and 100% in K. pneumoniae. A combination of uniplex and multiplex PCRs revealed fewer ARGs in E. coli isolates, with each isolate carrying 3 to 5 genes (tetA, dfrA1, sul1, sul2, qnrB, qnrS, aac(6')-Ib-cr). Majority of the E. coli were assigned to low-virulence phylogroup B1 and A while 8% of them belonged to pathogenic phylogroup D. 31 unique genetic profiles were identified for E. coli isolates by Pulsed-Field Gel Electrophoresis (PFGE) typing. K. pneumoniae isolates were highly diverse with 11 unique genetic profiles and a substantial ARG profile (blaTEM, blaSHV, blaOXA-1-like, tetA, strA, strB, dfrA1, sul1, sul2, qnrB, qnrS, aac(6')-Ib-cr, oqxA, oqxB). The frequency of ARGs ranged between 4 and 11. All K. pneumoniae isolates belonged to capsular serotype with wzi gene. Virulence gene iutA was prominent in all isolates while ybtS and kfu were confirmed in two isolates. Our findings raise concerns that fishes bought for consumption may serve as potential reservoirs of AMR genes and pose serious threat to public health. The study emphasizes the need for extensive surveillance of resistant strains in aquaculture and related settings, their in-depth analysis of population structure and transmission dynamics.
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Affiliation(s)
- G K Sivaraman
- Microbiology Fermentation and Biotechnology Division, ICAR-Central Institute of Fisheries Technology, Kochi, India.
| | - S Sudha
- Microbiology Fermentation and Biotechnology Division, ICAR-Central Institute of Fisheries Technology, Kochi, India
| | - K H Muneeb
- Microbiology Fermentation and Biotechnology Division, ICAR-Central Institute of Fisheries Technology, Kochi, India
| | - Bibek Shome
- Department of Disease Investigation, ICAR-National Institute of Veterinary Epidemiology and Disease Informatics, Bangalore, India
| | - Mark Holmes
- Department of Veterinary Medicine, University of Cambridge, UK
| | - Jennifer Cole
- Department of Geography, Royal Holloway, University of London, UK.PhD Principal Scientist & Principal Investigator, Microbiology Fermentation and Biotechnology Division ICAR-Central Institute of Fisheries Technology, Matsyapuri P. O, Willingdon Island Kochi, 682 029, India
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Bergšpica I, Kaprou G, Alexa EA, Prieto M, Alvarez-Ordóñez A. Extended Spectrum β-Lactamase (ESBL) Producing Escherichia coli in Pigs and Pork Meat in the European Union. Antibiotics (Basel) 2020; 9:E678. [PMID: 33036406 PMCID: PMC7600538 DOI: 10.3390/antibiotics9100678] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2020] [Revised: 10/02/2020] [Accepted: 10/03/2020] [Indexed: 02/06/2023] Open
Abstract
The aim of this article is to review the fast and worldwide distribution of ESBL enzymes and to describe the role of the pork production chain as a reservoir and transmission route of ESBL-producing Escherichia coli and ESBLs in the European Union (EU). The use of β-lactam antibiotics in swine production and the prevalence of ESBL producing E. coli in fattening pigs and pork meat across Europe is analyzed. Overall, an increasing trend in the prevalence of presumptive ESBL producing E. coli in fattening pigs in the EU has been observed in the last decade, although with major differences among countries, linked to different approaches in the use of antimicrobials in pork production within the EU. Moreover, the various dissemination pathways of these bacteria along the pork production chain are described, along with factors at farm and slaughterhouse level influencing the risk of introducing or spreading ESBL producing bacteria throughout the food chain.
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Affiliation(s)
- Ieva Bergšpica
- Department of Food Hygiene and Technology, Universidad de León, 24007 León, Spain; (G.K.); (E.A.A.); (M.P.)
- Institute of Food Safety, Animal Health and Environment BIOR, LV-1076 Riga, Latvia
| | - Georgia Kaprou
- Department of Food Hygiene and Technology, Universidad de León, 24007 León, Spain; (G.K.); (E.A.A.); (M.P.)
| | - Elena A. Alexa
- Department of Food Hygiene and Technology, Universidad de León, 24007 León, Spain; (G.K.); (E.A.A.); (M.P.)
| | - Miguel Prieto
- Department of Food Hygiene and Technology, Universidad de León, 24007 León, Spain; (G.K.); (E.A.A.); (M.P.)
- Institute of Food Science and Technology, Universidad de León, 24007 León, Spain
| | - Avelino Alvarez-Ordóñez
- Department of Food Hygiene and Technology, Universidad de León, 24007 León, Spain; (G.K.); (E.A.A.); (M.P.)
- Institute of Food Science and Technology, Universidad de León, 24007 León, Spain
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Tanimoto K, Nomura T, Hashimoto Y, Hirakawa H, Watanabe H, Tomita H. Isolation of Serratia fonticola Producing FONA, a Minor Extended-Spectrum β-Lactamase (ESBL), from Imported Chicken Meat in Japan. Jpn J Infect Dis 2020; 74:79-81. [PMID: 32741928 DOI: 10.7883/yoken.jjid.2020.114] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Five novel strains of Serratia fonticola that produce FONA, a minor extended-spectrum beta-lactamase (ESBL), were isolated during routine surveillance of ESBL-producing Enterobacteriaceae in imported chicken meat in Japan in 2017 and 2018. These strains exhibited a clear ESBL phenotype in susceptibility tests carried out in the presence of clavulanic acid; however, all strains tested negative in a multiplex polymerase chain reaction assay used to detect TEM, SHV, and CTX-M β-lactamase genes. After identification of the bacterial species as S. fonticola, full length blaFONA genes were amplified and the DNA sequences were determined. The blaFONA genes from all 5 strains were different from those previously reported (blaFONA-1 to blaFONA-6); they clustered close to one another but were distinct from previously reported blaFONA genes in a phylogenic analysis based on amino acid sequences.
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Affiliation(s)
- Koichi Tanimoto
- Laboratory of Bacterial Drug Resistance, Gunma University Graduate School of Medicine, Japan
| | - Takahiro Nomura
- Department of Bacteriology, Gunma University Graduate School of Medicine, Japan
| | - Yusuke Hashimoto
- Department of Bacteriology, Gunma University Graduate School of Medicine, Japan
| | - Hidetada Hirakawa
- Department of Bacteriology, Gunma University Graduate School of Medicine, Japan
| | - Haruo Watanabe
- Department of Public Health, Faculty of Medicine, International University of Health and Welfare, Japan
| | - Haruyoshi Tomita
- Laboratory of Bacterial Drug Resistance, Gunma University Graduate School of Medicine, Japan.,Department of Bacteriology, Gunma University Graduate School of Medicine, Japan
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42
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Hai PD, Hoa LTV, Tot NH, Phuong LL, Quang VV, Thuyet BT, Son PN. First report of biliary tract infection caused by multidrug-resistant Serratia fonticola. New Microbes New Infect 2020; 36:100692. [PMID: 32528687 PMCID: PMC7281793 DOI: 10.1016/j.nmni.2020.100692] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2020] [Revised: 05/06/2020] [Accepted: 05/07/2020] [Indexed: 12/31/2022] Open
Abstract
Serratia fonticola is widely distributed in nature and a rare human pathogen. We report the first Case of biliary tract infection due to multidrug-resistant Serratia fonticola in a 78-year-old woman in Vietnam. Bile culture grew S. fonticola. Based on the antibiogram, S. fonticola is resistant to all antibiotic classes. The patient developed septic shock and died.
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Affiliation(s)
- P D Hai
- Intensive Care Unit, 108 Military Central Hospital, Viet Nam
| | - L T V Hoa
- Intensive Care Unit, Tam Anh Hospital, Viet Nam
| | - N H Tot
- Intensive Care Unit, 108 Military Central Hospital, Viet Nam
| | - L L Phuong
- Intensive Care Unit, 108 Military Central Hospital, Viet Nam
| | - V V Quang
- Department of Hepato-Biliary & Pancreas Surgery, 108 Military Central Hospital, Viet Nam
| | - B T Thuyet
- Department of Microbiology, 108 Military Central Hospital, Viet Nam
| | - P N Son
- Department of Cardiology, 108 Military Central Hospital, Viet Nam
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43
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Richter L, du Plessis EM, Duvenage S, Korsten L. Occurrence, Phenotypic and Molecular Characterization of Extended-Spectrum- and AmpC- β-Lactamase Producing Enterobacteriaceae Isolated From Selected Commercial Spinach Supply Chains in South Africa. Front Microbiol 2020; 11:638. [PMID: 32351477 PMCID: PMC7176360 DOI: 10.3389/fmicb.2020.00638] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2019] [Accepted: 03/20/2020] [Indexed: 12/11/2022] Open
Abstract
The increasing occurrence of multidrug-resistant (MDR) extended-spectrum β-lactamase- (ESBL) and/or AmpC β-lactamase-producing Enterobacteriaceae in health care systems, the environment and fresh produce is a serious concern globally. Production practices, processing and subsequent consumption of contaminated raw fruit and vegetables represent a possible human transmission route. The purpose of this study was to determine the presence of ESBL/AmpC-producing Enterobacteriaceae in complete spinach supply chains and to characterize the isolated strains phenotypically (antimicrobial resistance profiles) and genotypically (ESBL/AmpC genetic determinants, detection of class 1, 2, and 3 integrons). Water, soil, fresh produce, and contact surface samples (n = 288) from two commercial spinach production systems were screened for ESBL/AmpC-producing Enterobacteriaceae. In total, 14.58% (42/288) of the samples were found to be contaminated after selective enrichment, plating onto chromogenic media and matrix-assisted laser desorption ionization time-of-flight mass spectrometry identity confirmation of presumptive ESBL/AmpC isolates. This included 15.28% (11/72) water and 12.12% (16/132) harvested- and processed spinach, while 25% (15/60) retail spinach samples were found to be contaminated with an increase in isolate abundance and diversity in both scenarios. Dominant species identified included Serratia fonticola (45.86%), Escherichia coli (20.83%), and Klebsiella pneumoniae (18.75%). In total, 48 (81.36%) isolates were phenotypically confirmed as ESBL/AmpC-producing Enterobacteriaceae of which 98% showed a MDR phenotype. Genotypic characterization (PCR of ESBL/AmpC resistance genes and integrons) further revealed the domination of the CTX-M Group 1 ESBL type, followed by TEM and SHV; whilst the CIT-type was the only plasmid-mediated AmpC genetic determinant detected. Integrons were detected in 79.17% (n = 38) of the confirmed ESBL/AmpC-producing isolates, of which we highlight the high prevalence of class 3 integrons, detected in 72.92% (n = 35) of the isolates, mostly in S. fonticola. Class 2 integrons were not detected in this study. This is the first report on the prevalence of ESBL/AmpC-producing Enterobacteriaceae isolated throughout commercial spinach production systems harboring class 1 and/or class 3 integrons in Gauteng Province, South Africa. The results add to the global knowledge base regarding the prevalence and characteristics of ESBL/AmpC-producing Enterobacteriaceae in fresh vegetables and the agricultural environment required for future risk analysis.
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Affiliation(s)
- Loandi Richter
- Department of Plant and Soil Sciences, University of Pretoria, Pretoria, South Africa
| | - Erika M du Plessis
- Department of Plant and Soil Sciences, University of Pretoria, Pretoria, South Africa
| | - Stacey Duvenage
- Department of Plant and Soil Sciences, University of Pretoria, Pretoria, South Africa.,Department of Science and Technology-National Research Foundation Centre of Excellence in Food Security, Bellville, South Africa
| | - Lise Korsten
- Department of Plant and Soil Sciences, University of Pretoria, Pretoria, South Africa.,Department of Science and Technology-National Research Foundation Centre of Excellence in Food Security, Bellville, South Africa
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Alegría Á, Arias-Temprano M, Fernández-Natal I, Rodríguez-Calleja JM, García-López ML, Santos JA. Molecular Diversity of ESBL-Producing Escherichia coli from Foods of Animal Origin and Human Patients. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2020; 17:E1312. [PMID: 32085569 PMCID: PMC7068493 DOI: 10.3390/ijerph17041312] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/20/2019] [Revised: 01/21/2020] [Accepted: 02/15/2020] [Indexed: 02/06/2023]
Abstract
Dissemination of enterobacteria that produce extended spectrum β-lactamases (ESBL) throughout the food chain has become an important health concern. This work aimed to evaluate the occurrence of ESBL-producing bacteria in foods of animal origin and to investigate the similarities between food and human isolates. The presence of beta-lactam-resistant Enterobacteriaceae was analyzed in 108 food samples, isolating 10 strains of Escherichia coli, one strain of Citrobacter freundi, and one of Hafnia alvei. E. coli isolates were compared to a group of 15 strains isolated from human patients by antibiotic susceptibility testing, characterization of ESBL genes (blaTEM, blaCTX,), multilocus sequence typing (MLST) and pulse-field gel electrophoresis (PFGE). Nineteen (14 clinical and five food) isolates carried blaCTX, 14 (six clinical and eight food) carried blaTEM, and three (one clinical and two food) carried blaSHV gen. MLST analysis revealed the prevalence of ST131 among the clinical strains, which grouped together in a PFGE cluster. Food isolates showed higher diversity and two of them (ST57) grouped with clinical strains, whereas another two belonged to clonal groups with virulence potential (ST59). In conclusion, the results showed that foods of animal origin must be regarded as a reservoir of ESBL-producing bacteria of clinical relevance, which might spread through the food chain.
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Affiliation(s)
- Ángel Alegría
- Department of Food Hygiene and Food Technology, Veterinary Faculty, Universidad de León, ES24071 León, Spain; (Á.A.); (J.M.R.-C.); (M.-L.G.-L.)
| | - Marta Arias-Temprano
- Department of Clinical Microbiology, Complejo Asistencial Universitario de León (CAULE), ES24071 León, Spain; (M.A.-T.); (I.F.-N.)
| | - Isabel Fernández-Natal
- Department of Clinical Microbiology, Complejo Asistencial Universitario de León (CAULE), ES24071 León, Spain; (M.A.-T.); (I.F.-N.)
| | - Jose M. Rodríguez-Calleja
- Department of Food Hygiene and Food Technology, Veterinary Faculty, Universidad de León, ES24071 León, Spain; (Á.A.); (J.M.R.-C.); (M.-L.G.-L.)
| | - María-Luisa García-López
- Department of Food Hygiene and Food Technology, Veterinary Faculty, Universidad de León, ES24071 León, Spain; (Á.A.); (J.M.R.-C.); (M.-L.G.-L.)
| | - Jesús A. Santos
- Department of Food Hygiene and Food Technology, Veterinary Faculty, Universidad de León, ES24071 León, Spain; (Á.A.); (J.M.R.-C.); (M.-L.G.-L.)
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45
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Glaize A, Gutierrez-Rodriguez E, Hanning I, Díaz-Sánchez S, Gunter C, van Vliet AHM, Watson W, Thakur S. Transmission of antimicrobial resistant non-O157 Escherichia coli at the interface of animal-fresh produce in sustainable farming environments. Int J Food Microbiol 2019; 319:108472. [PMID: 31901751 DOI: 10.1016/j.ijfoodmicro.2019.108472] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2019] [Revised: 11/24/2019] [Accepted: 12/06/2019] [Indexed: 02/06/2023]
Abstract
The interaction of typical host adapted enteric bacterial pathogens with fresh produce grown in fields is complex. These interactions can be more pronounced in co-managed or sustainable farms where animal operations are, by design, close to fresh produce, and growers frequently move between the two production environments. The primary objectives of this study were to 1) determine the transmission of STEC or enteric pathogens from small and large animal herds or operations to fresh produce on sustainable farms in TN and NC, 2) identify the possible sources that impact transmission of AMR E. coli, specifically STEC on these systems, and 3) WGS to characterize recovered E. coli from these sources. Samples were collected from raw and composted manure, environment, and produce sources. The serotype, virulence, and genotypic resistance profile were determined using the assembled genome sequences sequenced by Illumina technology. Broth microdilution was used to determine the antimicrobial susceptibility of each isolate against a panel of fourteen antimicrobials. The prevalence of E. coli increased during the summer season for all sources tested. ParSNP trees generated demonstrated that the transmission of AMR E. coli is occurring between animal feeding operations and fresh produce. Ten isolates were identified as serotype O45, a serotype that is associated with the "Big Six" group that is frequently linked with foodborne outbreaks caused by non-O157 E. coli. However, these isolates did not possess the stx gene. The highest frequency of resistance was detected against streptomycin (n = 225), ampicillin (n = 190) and sulfisoxazole FIS (n = 140). A total of 35 (13.7%) isolates from two TN farms were positive for the blaCMY (n = 5) and blaTEM (n = 32) genes. The results of this study show the potential of AMR E. coli transmission between animal feeding operations and fresh produce, and more studies are recommended to study this interaction and prevent dissemination in sustainable farming systems.
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Affiliation(s)
- Ayanna Glaize
- Department of Population Health & Pathobiology, College of Veterinary Medicine, North Carolina State University, Raleigh, NC 27607, USA; Comparative Medicine Institute, North Carolina State University, Raleigh, NC 27607, USA
| | - Eduardo Gutierrez-Rodriguez
- Department of Food, Bioprocessing and Nutrition Sciences, North Carolina State University, Raleigh, NC 27607, USA
| | - Irene Hanning
- College of Genome Sciences and Technology, University of Tennessee, Knoxville, TN 37996, USA
| | - Sandra Díaz-Sánchez
- College of Genome Sciences and Technology, University of Tennessee, Knoxville, TN 37996, USA
| | - Chris Gunter
- Extension Vegetable Production Specialist, Horticultural Science, North Carolina State University, Raleigh, NC 27695, USA
| | - Arnoud H M van Vliet
- Department of Pathology and Infectious Diseases, School of Veterinary Medicine, University of Surrey, Guildford, Surrey GU2 7AL, UK
| | - Wes Watson
- Entomology and Plant Pathology, College of Agriculture and Life Sciences, North Carolina State University, Raleigh, NC 27607, USA
| | - Siddhartha Thakur
- Department of Population Health & Pathobiology, College of Veterinary Medicine, North Carolina State University, Raleigh, NC 27607, USA; Comparative Medicine Institute, North Carolina State University, Raleigh, NC 27607, USA.
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46
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High prevalence of mcr-1 encoding colistin resistance and first identification of bla CTX-M-55 in ESBL/CMY-2-producing Escherichia coli isolated from chicken faeces and retail meat in Tunisia. Int J Food Microbiol 2019; 318:108478. [PMID: 31855787 DOI: 10.1016/j.ijfoodmicro.2019.108478] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2019] [Revised: 10/21/2019] [Accepted: 12/10/2019] [Indexed: 02/06/2023]
Abstract
Avian industries have been reported as an important contributor in the worldwide spread of antibiotic resistance owing to some particular practices especially the overuse of antibiotics. Thus in this study, we aimed to characterize extended-spectrum-beta-lactamase (ESBL) and acquired-AmpC-beta-lactamase (aAmpC)-producing Escherichia coli isolates from chicken faeces and raw meat in Tunisia. During the year 2018, 286 faecal chicken swabs and 47 raw chicken meat samples were collected and processed to recover cefotaxime-resistant E. coli. Antimicrobial susceptibility was performed by disk-diffusion and/or broth-microdilution. blaTEM, blaSHV, blaCTX-M, and blaCMY genes were investigated by PCR/sequencing. Genes encoding resistance to colistin (mcr-1 to mcr-8), tetracycline (tetA/tetB), sulfonamide (sul1/sul3), and chloramphenicol (cmlA), were analysed by PCR. Class 1 integrons were investigated by PCR/sequencing. Phylogenetic groups of all isolates were determined. PFGE and MLST were performed for representative isolates. PCR-based replicon typing was performed in mcr1-harbouring isolates. Cefotaxime-resistant E. coli was detected in 22.4% (64/286) and 63.8% (30/47) of faeces and meat samples, respectively. Ninety isolates were ESBL-producers and harboured the genes: blaCTX-M-1 +/- blaTEM-1 (n = 65), blaCTX-M-55 +/- blaTEM-1 (n = 21), blaCTX-M-14 (n = 1), and blaSHV-12 (n = 3). The blaCMY-2 gene was detected in four ESBL-negative isolates. Isolates belonged to phylogroups D (50%), A (36.2%), B1 (9.6%), and B2 (4.3%). Fifty-four were colistin-resistant and 52 carried the mcr-1 gene. The tetA, sul1/sul3 and cmlA genes were detected among resistant isolates and 76 harboured class 1 integrons. MLST analysis revealed 13 sequence types (STs). The isolates were classified into 28 PFGE types. The IncP, IncFIB, and IncI1 replicons were detected among mcr-1-positive strains. We report a high frequency of ESBL-producers and colistin-resistant E. coli in chicken and derived food and the detection for the first time of blaCTX-M-55 in poultry in Tunisia.
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Al-Kharousi ZS, Guizani N, Al-Sadi AM, Al-Bulushi IM. Antibiotic Resistance of Enterobacteriaceae Isolated from Fresh Fruits and Vegetables and Characterization of their AmpC β-Lactamases. J Food Prot 2019; 82:1857-1863. [PMID: 31609646 DOI: 10.4315/0362-028x.jfp-19-089] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Enterobacteria may gain antibiotic resistance and be potent pathogens wherever they are present, including in fresh fruits and vegetables. This study tested the antibiotic resistance of enterobacteria isolated from 13 types of local and imported fresh fruits and vegetables (n = 105), using the standard Kirby-Bauer disk diffusion method. Phenotypic and genotypic characterizations of AmpC β-lactamases were determined in cefoxitin-resistant isolates. Ten percent of the enterobacteria tested (n = 88) were pansusceptible, 74% were resistant to at least one antibiotic, and 16% were multidrug resistant. Enterobacteria isolates showed the highest antibiotic resistance against ampicillin (66%), cephalothin (57%), amoxicillin-clavulanic acid (33%), cefoxitin (31%), tetracycline (9%), nalidixic acid (7%), trimethoprim (6%), and kanamycin (5%). Three isolates showed intermediate resistance to the clinically important antibiotic imipenem. Escherichia coli isolated from lettuce exhibited multidrug resistance against five antibiotics. Fifteen isolates were confirmed to have AmpC β-lactamase, using the inhibitor-based test and the antagonism test; the latter test confirmed that the enzyme was an inducible type. Four types of ampC β-lactamase genes (CIT, EBC, FOX, and MOX) were detected in eight isolates: four Enterobacter cloacae isolates and one isolate each of Citrobacter freundii, Enterobacter asburiae, Enterobacter hormaechei, and Enterobacter ludwigii. It was concluded that fresh fruits and vegetables might play a role as a source or vehicle for transferring antibiotic-resistant bacteria that might spread to other countries through exportation. The clinically significant AmpC β-lactamase was rarely documented in the literature on bacteria isolated from fruits and vegetables, and to our knowledge, this is the first report on the detection of an inducible type in such commodities.
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Affiliation(s)
- Zahra S Al-Kharousi
- Department of Food Science and Nutrition, Sultan Qaboos University, P.O. Box 34, Al-Khod 123, Sultanate of Oman
| | - Nejib Guizani
- Department of Food Science and Nutrition, Sultan Qaboos University, P.O. Box 34, Al-Khod 123, Sultanate of Oman
| | - Abdullah M Al-Sadi
- Department of Crop Sciences, College of Agricultural and Marine Sciences, Sultan Qaboos University, P.O. Box 34, Al-Khod 123, Sultanate of Oman (ORCID: https://orcid.org/0000-0003-0702-9298 [N.G.])
| | - Ismail M Al-Bulushi
- Department of Food Science and Nutrition, Sultan Qaboos University, P.O. Box 34, Al-Khod 123, Sultanate of Oman
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Isolation and molecular characterization of citrobacter species in fruits and vegetables sold for consumption in ILE-IFE, Nigeria. SCIENTIFIC AFRICAN 2019. [DOI: 10.1016/j.sciaf.2019.e00173] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
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49
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Mesbah Zekar F, Granier SA, Touati A, Millemann Y. Occurrence of Third-Generation Cephalosporins-Resistant Klebsiella pneumoniae in Fresh Fruits and Vegetables Purchased at Markets in Algeria. Microb Drug Resist 2019; 26:353-359. [PMID: 31603740 DOI: 10.1089/mdr.2019.0249] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
This study aimed to characterize third-generation cephalosporin (3GC)-resistant Klebsiella pneumoniae isolated from fresh fruits and vegetables purchased at Bejaia city, Algeria. K. pneumoniae isolates were identified by MALDI-TOF. Susceptibility to antibiotics was tested by the disk diffusion method. Whole genome sequencing (WGS) was carried out to determine sequence type (ST), plasmid incompatibility group (Inc.), and acquired antimicrobial resistance gene presence. A total of 13 3GC-resistant K. pneumoniae strains were isolated. WGS identified blaCTX-M-15 in 11 extended-spectrum-beta-lactamases (ESBL)-K. pneumoniae and blaDHA-1 in 2 AmpC-K. pneumoniae. The aac(6')lb-cr gene was identified in 8 out of 13 isolates. Multilocus sequence typing (MLST) evidenced five different STs, namely ST14, ST45, ST219, ST236, and ST882. MDR K. pneumoniae contaminated fresh fruits and vegetables, often eaten raw and inappropriately washed, may represent an underestimated public health threat. This study highlights that hygiene measures during harvesting and retail process are of utmost importance to limit further ESBL/AmpC spread to the consumer households.
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Affiliation(s)
- Ferielle Mesbah Zekar
- Laboratoire d'Ecologie Microbienne, Faculté des Sciences de la Nature et de la Vie, Université de Bejaia, Bejaia, Algeria.,Laboratoire de Sécurité des Aliments, Agence Nationale de Sécurité Sanitaire de l'Alimentation, de l'Environnement et du Travail (ANSES), Université PARIS-EST, Maisons-Alfort, France
| | - Sophie A Granier
- Laboratoire de Sécurité des Aliments, Agence Nationale de Sécurité Sanitaire de l'Alimentation, de l'Environnement et du Travail (ANSES), Université PARIS-EST, Maisons-Alfort, France.,Laboratoire de Fougères, Agence Nationale de Sécurité Sanitaire de l'Alimentation, de l'Environnement et du Travail (ANSES), Fougères, France
| | - Abdelaziz Touati
- Laboratoire d'Ecologie Microbienne, Faculté des Sciences de la Nature et de la Vie, Université de Bejaia, Bejaia, Algeria
| | - Yves Millemann
- Laboratoire de Sécurité des Aliments, Agence Nationale de Sécurité Sanitaire de l'Alimentation, de l'Environnement et du Travail (ANSES), Université PARIS-EST, Maisons-Alfort, France.,Ecole Nationale Vétérinaire d'Alfort, Université Paris-Est, Maisons-Alfort, France
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50
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Cerqueira F, Matamoros V, Bayona JM, Berendonk TU, Elsinga G, Hornstra LM, Piña B. Antibiotic resistance gene distribution in agricultural fields and crops. A soil-to-food analysis. ENVIRONMENTAL RESEARCH 2019; 177:108608. [PMID: 31377583 DOI: 10.1016/j.envres.2019.108608] [Citation(s) in RCA: 57] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/11/2019] [Revised: 07/23/2019] [Accepted: 07/24/2019] [Indexed: 05/23/2023]
Abstract
Despite the social concern about the generalization of antibiotic resistance hotspots worldwide, very little is known about the contribution of different potential sources to the global risk. Here we present a quantitative analysis of the distribution of Antibiotic Resistance Genes (ARGs) in soil, rhizospheric soil, roots, leaves and beans in tomato, lettuce and broad beans crops (165 samples in total), grown in nine commercial plots distributed in four geographical zones in the vicinity of Barcelona (North East Spain). We also analyzed five soil samples from a nearby forest, with no record of agricultural activities. DNA samples were analyzed for their content in the ARGs sul1, tetM, qnrS1, blaCTX-M-32, blaOXA-58, mecA, and blaTEM, plus the integron intI1, using qPCR methods. In addition, soil microbiomes from the different plots were analyzed by amplicon-targeted 16S rRNA gene sequencing. Our data show a decreasing gradient of ARG loads from soil to fruits and beans, the latter showing only from 0.1 to 0.01% of the abundance values in soil. The type of crop was the main determinant for both ARG distribution and microbiome composition among the different plots, with minor contributions of geographic location and irrigation water source. We propose that soil amendment and/or fertilization, more than irrigation water, are the main drivers of ARG loads on the edible parts of the crop, and that they should therefore be specifically controlled.
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Affiliation(s)
- Francisco Cerqueira
- Department of Environmental Chemistry, IDAEA-CSIC, C/Jordi Girona, 18-26, 08034, Barcelona, Spain
| | - Víctor Matamoros
- Department of Environmental Chemistry, IDAEA-CSIC, C/Jordi Girona, 18-26, 08034, Barcelona, Spain
| | - Josep M Bayona
- Department of Environmental Chemistry, IDAEA-CSIC, C/Jordi Girona, 18-26, 08034, Barcelona, Spain
| | - Thomas U Berendonk
- Department of Hydrosciences, Technische Universität Dresden, Dresden, Germany
| | - Goffe Elsinga
- KWR Watercycle Research Institute, Groningenhaven 7, 3433 PE, Nieuwegein, the Netherlands
| | - Luc M Hornstra
- KWR Watercycle Research Institute, Groningenhaven 7, 3433 PE, Nieuwegein, the Netherlands
| | - Benjamin Piña
- Department of Environmental Chemistry, IDAEA-CSIC, C/Jordi Girona, 18-26, 08034, Barcelona, Spain.
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