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Lerminiaux N, Mitchell R, Bartoszko J, Davis I, Ellis C, Fakharuddin K, Hota SS, Katz K, Kibsey P, Leis JA, Longtin Y, McGeer A, Minion J, Mulvey M, Musto S, Rajda E, Smith SW, Srigley JA, Suh KN, Thampi N, Tomlinson J, Wong T, Mataseje L. Plasmid genomic epidemiology of blaKPC carbapenemase-producing Enterobacterales in Canada, 2010-2021. Antimicrob Agents Chemother 2023; 67:e0086023. [PMID: 37971242 PMCID: PMC10720558 DOI: 10.1128/aac.00860-23] [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: 06/30/2023] [Accepted: 10/07/2023] [Indexed: 11/19/2023] Open
Abstract
Carbapenems are considered last-resort antibiotics for the treatment of infections caused by multidrug-resistant Enterobacterales, but carbapenem resistance due to acquisition of carbapenemase genes is a growing threat that has been reported worldwide. Klebsiella pneumoniae carbapenemase (blaKPC) is the most common type of carbapenemase in Canada and elsewhere; it can hydrolyze penicillins, cephalosporins, aztreonam, and carbapenems and is frequently found on mobile plasmids in the Tn4401 transposon. This means that alongside clonal expansion, blaKPC can disseminate through plasmid- and transposon-mediated horizontal gene transfer. We applied whole genome sequencing to characterize the molecular epidemiology of 829 blaKPC carbapenemase-producing isolates collected by the Canadian Nosocomial Infection Surveillance Program from 2010 to 2021. Using a combination of short-read and long-read sequencing, we obtained 202 complete and circular blaKPC-encoding plasmids. Using MOB-suite, 10 major plasmid clusters were identified from this data set which represented 87% (175/202) of the Canadian blaKPC-encoding plasmids. We further estimated the genomic location of incomplete blaKPC-encoding contigs and predicted a plasmid cluster for 95% (603/635) of these. We identified different patterns of carbapenemase mobilization across Canada related to different plasmid clusters, including clonal transmission of IncF-type plasmids (108/829, 13%) in K. pneumoniae clonal complex 258 and novel repE(pEh60-7) plasmids (44/829, 5%) in Enterobacter hormaechei ST316, and horizontal transmission of IncL/M (142/829, 17%) and IncN-type plasmids (149/829, 18%) across multiple genera. Our findings highlight the diversity of blaKPC genomic loci and indicate that multiple, distinct plasmid clusters have contributed to blaKPC spread and persistence in Canada.
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Affiliation(s)
| | | | | | - Ian Davis
- QEII Health Sciences Centre, Halifax, Nova Scotia, Canada
| | - Chelsey Ellis
- The Moncton Hospital, Moncton, New Brunswick, Canada
| | - Ken Fakharuddin
- National Microbiology Laboratory, Winnipeg, Manitoba, Canada
| | - Susy S. Hota
- University Health Network, Toronto, Ontario, Canada
| | - Kevin Katz
- North York General Hospital, Toronto, Ontario, Canada
| | - Pamela Kibsey
- Royal Jubilee Hospital, Victoria, British Columbia, Canada
| | - Jerome A. Leis
- Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada
| | - Yves Longtin
- Jewish General Hospital, Montréal, Québec, Canada
| | | | - Jessica Minion
- Saskatchewan Health Authority, Regina, Saskatchewan, Canada
| | - Michael Mulvey
- National Microbiology Laboratory, Winnipeg, Manitoba, Canada
| | - Sonja Musto
- Health Sciences Centre, Winnipeg, Manitoba, Canada
| | - Ewa Rajda
- McGill University Health Centre, Montréal, Québec, Canada
| | | | - Jocelyn A. Srigley
- BC Women’s and BC Children’s Hospital, Vancouver, British Columbia, Canada
| | | | - Nisha Thampi
- Children’s Hospital of Eastern Ontario, Ottawa, Ontario, Canada
| | | | - Titus Wong
- Vancouver Coastal Health Research Institute, Vancouver, British Columbia, Canada
| | - Laura Mataseje
- National Microbiology Laboratory, Winnipeg, Manitoba, Canada
| | - on behalf of the Canadian Nosocomial Infection Surveillance Program
- National Microbiology Laboratory, Winnipeg, Manitoba, Canada
- Public Health Agency of Canada, Ottawa, Ontario, Canada
- QEII Health Sciences Centre, Halifax, Nova Scotia, Canada
- The Moncton Hospital, Moncton, New Brunswick, Canada
- University Health Network, Toronto, Ontario, Canada
- North York General Hospital, Toronto, Ontario, Canada
- Royal Jubilee Hospital, Victoria, British Columbia, Canada
- Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada
- Jewish General Hospital, Montréal, Québec, Canada
- Sinai Health, Toronto, Ontario, Canada
- Saskatchewan Health Authority, Regina, Saskatchewan, Canada
- Health Sciences Centre, Winnipeg, Manitoba, Canada
- McGill University Health Centre, Montréal, Québec, Canada
- University of Alberta Hospital, Edmonton, Alberta, Canada
- BC Women’s and BC Children’s Hospital, Vancouver, British Columbia, Canada
- The Ottawa Hospital, Ottawa, Ontario, Canada
- Children’s Hospital of Eastern Ontario, Ottawa, Ontario, Canada
- Vancouver Coastal Health Research Institute, Vancouver, British Columbia, Canada
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Mevada V, Patel R, Dudhagara P, Chaudhari R, Vohra M, Khan V, J. H. Shyu D, Chen YY, Zala D. Whole Genome Sequencing and Pan-Genomic Analysis of Multidrug-Resistant Vibrio cholerae VC01 Isolated from a Clinical Sample. Microorganisms 2023; 11:2030. [PMID: 37630590 PMCID: PMC10457874 DOI: 10.3390/microorganisms11082030] [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: 07/01/2023] [Revised: 08/02/2023] [Accepted: 08/05/2023] [Indexed: 08/27/2023] Open
Abstract
Cholera, a disease caused by the Vibrio cholerae bacteria, threatens public health worldwide. The organism mentioned above has a significant historical record of being identified as a prominent aquatic environmental pollutant capable of adapting its phenotypic and genotypic traits to react to host patients effectively. This study aims to elucidate the heterogeneity of the sporadic clinical strain of V. cholerae VC01 among patients residing in Silvasa. The study involved conducting whole-genome sequencing of the isolate obtained from patients exhibiting symptoms, including those not commonly observed in clinical practice. The strain was initially identified through a combination of biochemical analysis, microscopy, and 16s rRNA-based identification, followed by type strain-based identification. The investigation demonstrated the existence of various genetic alterations and resistance profiles against multiple drugs, particularly chloramphenicol (catB9), florfenicol (floR), oxytetracycline (tet(34)), sulfonamide (sul2), and Trimethoprim (dfrA1). The pan-genomic analysis indicated that 1099 distinct clusters were detected within the genome sequences of recent isolates worldwide. The present study helps to establish a correlation between the mutation and the coexistence of antimicrobial resistance toward current treatment.
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Affiliation(s)
- Vishal Mevada
- DNA Division, Directorate of Forensic Science, Gandhinagar 382007, India;
| | - Rajesh Patel
- Department of Biosciences, Veer Narmad South Gujarat University, Surat 395007, India;
| | - Pravin Dudhagara
- Department of Biosciences, Veer Narmad South Gujarat University, Surat 395007, India;
| | - Rajesh Chaudhari
- School of Applied Sciences and Technology, Gujarat Technological University, Ahmedabad 382424, India;
| | - Mustafa Vohra
- Directorate of Medical & Health Services, UT of Dadra & Nagar Haveli and Daman & Diu, Silvassa 396230, India; (M.V.); (V.K.)
| | - Vikram Khan
- Directorate of Medical & Health Services, UT of Dadra & Nagar Haveli and Daman & Diu, Silvassa 396230, India; (M.V.); (V.K.)
| | - Douglas J. H. Shyu
- Department of Biological Science and Technology, National Pingtung University of Science and Technology, Neipu, Pingtung 912, Taiwan;
| | - Yih-Yuan Chen
- Department of Biochemical Science and Technology, National Chiayi University, Chiayi City 600, Taiwan;
| | - Dolatsinh Zala
- School of Applied Sciences and Technology, Gujarat Technological University, Ahmedabad 382424, India;
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Evans D, Sundermann A, Griffith M, Rangachar Srinivasa V, Mustapha M, Chen J, Dubrawski A, Cooper V, Harrison L, Van Tyne D. Empirically derived sequence similarity thresholds to study the genomic epidemiology of plasmids shared among healthcare-associated bacterial pathogens. EBioMedicine 2023; 93:104681. [PMID: 37392596 DOI: 10.1016/j.ebiom.2023.104681] [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: 02/17/2023] [Revised: 05/13/2023] [Accepted: 06/13/2023] [Indexed: 07/03/2023] Open
Abstract
BACKGROUND Healthcare-associated bacterial pathogens frequently carry plasmids that contribute to antibiotic resistance and virulence. The horizontal transfer of plasmids in healthcare settings has been previously documented, but genomic and epidemiologic methods to study this phenomenon remain underdeveloped. The objectives of this study were to apply whole-genome sequencing to systematically resolve and track plasmids carried by nosocomial pathogens in a single hospital, and to identify epidemiologic links that indicated likely horizontal plasmid transfer. METHODS We performed an observational study of plasmids circulating among bacterial isolates infecting patients at a large hospital. We first examined plasmids carried by isolates sampled from the same patient over time and isolates that caused clonal outbreaks in the same hospital to develop thresholds with which horizontal plasmid transfer within a tertiary hospital could be inferred. We then applied those sequence similarity thresholds to perform a systematic screen of 3074 genomes of nosocomial bacterial isolates from a single hospital for the presence of 89 plasmids. We also collected and reviewed data from electronic health records for evidence of geotemporal links between patients infected with bacteria encoding plasmids of interest. FINDINGS Our analyses determined that 95% of analyzed genomes maintained roughly 95% of their plasmid genetic content and accumulated fewer than 15 SNPs per 100 kb of plasmid sequence. Applying these similarity thresholds to identify horizontal plasmid transfer identified 45 plasmids that potentially circulated among clinical isolates. Ten highly preserved plasmids met criteria for geotemporal links associated with horizontal transfer. Several plasmids with shared backbones also encoded different additional mobile genetic element content, and these elements were variably present among the sampled clinical isolate genomes. INTERPRETATION Evidence suggests that the horizontal transfer of plasmids among nosocomial bacterial pathogens appears to be frequent within hospitals and can be monitored with whole genome sequencing and comparative genomics approaches. These approaches should incorporate both nucleotide identity and reference sequence coverage to study the dynamics of plasmid transfer in the hospital. FUNDING This research was supported by the US National Institute of Allergy and Infectious Disease (NIAID) and the University of Pittsburgh School of Medicine.
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Affiliation(s)
- Daniel Evans
- Department of Infectious Diseases and Microbiology, University of Pittsburgh Graduate School of Public Health, Pittsburgh, PA, USA
| | - Alexander Sundermann
- Division of Infectious Diseases, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA; Center for Genomic Epidemiology, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - Marissa Griffith
- Division of Infectious Diseases, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA; Center for Genomic Epidemiology, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - Vatsala Rangachar Srinivasa
- Division of Infectious Diseases, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA; Center for Genomic Epidemiology, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - Mustapha Mustapha
- Division of Infectious Diseases, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA; Center for Genomic Epidemiology, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - Jieshi Chen
- Auton Laboratory, Carnegie Mellon University, Pittsburgh, PA, USA
| | - Artur Dubrawski
- Auton Laboratory, Carnegie Mellon University, Pittsburgh, PA, USA
| | - Vaughn Cooper
- Center for Genomic Epidemiology, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA; Department of Microbiology and Molecular Genetics, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA; Center for Evolutionary Biology and Medicine, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - Lee Harrison
- Division of Infectious Diseases, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA; Center for Genomic Epidemiology, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - Daria Van Tyne
- Division of Infectious Diseases, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA; Center for Genomic Epidemiology, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA; Center for Evolutionary Biology and Medicine, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA.
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Brown SD, Dreolini L, Wilson JF, Balasundaram M, Holt RA. Complete sequence verification of plasmid DNA using the Oxford Nanopore Technologies' MinION device. BMC Bioinformatics 2023; 24:116. [PMID: 36964503 PMCID: PMC10039527 DOI: 10.1186/s12859-023-05226-y] [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: 11/09/2022] [Accepted: 03/11/2023] [Indexed: 03/26/2023] Open
Abstract
BACKGROUND Sequence verification is essential for plasmids used as critical reagents or therapeutic products. Typically, high-quality plasmid sequence is achieved through capillary-based Sanger sequencing, requiring customized sets of primers for each plasmid. This process can become expensive, particularly for applications where the validated sequence needs to be produced within a regulated and quality-controlled environment for downstream clinical research applications. RESULTS Here, we describe a cost-effective and accurate plasmid sequencing and consensus generation procedure using the Oxford Nanopore Technologies' MinION device as an alternative to capillary-based plasmid sequencing options. This procedure can verify the identity of a pure population of plasmid, either confirming it matches the known and expected sequence, or identifying mutations present in the plasmid if any exist. We use a full MinION flow cell per plasmid, maximizing available data and allowing for stringent quality filters. Pseudopairing reads for consensus base calling reduces read error rates from 5.3 to 0.53%, and our pileup consensus approach provides per-base counts and confidence scores, allowing for interpretation of the certainty of the resulting consensus sequences. For pure plasmid samples, we demonstrate 100% accuracy in the resulting consensus sequence, and the sensitivity to detect small mutations such as insertions, deletions, and single nucleotide variants. In test cases where the sequenced pool of plasmids contains subclonal templates, detection sensitivity is similar to that of traditional capillary sequencing. CONCLUSIONS Our pipeline can provide significant cost savings compared to outsourcing clinical-grade sequencing of plasmids, making generation of high-quality plasmid sequence for clinical sequence verification more accessible. While other long-read-based methods offer higher-throughput and less cost, our pipeline produces complete and accurate sequence verification for cases where absolute sequence accuracy is required.
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Affiliation(s)
- Scott D Brown
- Canada's Michael Smith Genome Sciences Centre, BC Cancer Research Institute, 675 W 10th Ave, Vancouver, BC, V5Z 1L3, Canada
| | - Lisa Dreolini
- Canada's Michael Smith Genome Sciences Centre, BC Cancer Research Institute, 675 W 10th Ave, Vancouver, BC, V5Z 1L3, Canada
| | - Jessica F Wilson
- Canada's Michael Smith Genome Sciences Centre, BC Cancer Research Institute, 675 W 10th Ave, Vancouver, BC, V5Z 1L3, Canada
| | - Miruna Balasundaram
- Canada's Michael Smith Genome Sciences Centre, BC Cancer Research Institute, 675 W 10th Ave, Vancouver, BC, V5Z 1L3, Canada
| | - Robert A Holt
- Canada's Michael Smith Genome Sciences Centre, BC Cancer Research Institute, 675 W 10th Ave, Vancouver, BC, V5Z 1L3, Canada.
- Department of Molecular Biology and Biochemistry, Simon Fraser University, SSB8166 - 8888 University Drive, Burnaby, BC, V5A 1S6, Canada.
- Department of Medical Genetics, University of British Columbia, C201 - 4500 Oak Street, 675 W 10th Ave, Vancouver, BC, V6H 3N1, Canada.
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Long-Read Whole Genome Sequencing Elucidates the Mechanisms of Amikacin Resistance in Multidrug-Resistant Klebsiella pneumoniae Isolates Obtained from COVID-19 Patients. Antibiotics (Basel) 2022; 11:antibiotics11101364. [PMID: 36290022 PMCID: PMC9598329 DOI: 10.3390/antibiotics11101364] [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: 09/21/2022] [Revised: 09/29/2022] [Accepted: 10/04/2022] [Indexed: 11/28/2022] Open
Abstract
Klebsiella pneumoniae is a Gram-negative, encapsulated, non-motile bacterium, which represents a global challenge to public health as one of the major causes of healthcare-associated infections worldwide. In the recent decade, the World Health Organization (WHO) noticed a critically increasing rate of carbapenem-resistant K. pneumoniae occurrence in hospitals. The situation with extended-spectrum beta-lactamase (ESBL) producing bacteria further worsened during the COVID-19 pandemic, due to an increasing number of patients in intensive care units (ICU) and extensive, while often inappropriate, use of antibiotics including carbapenems. In order to elucidate the ways and mechanisms of antibiotic resistance spreading within the K. pneumoniae population, whole genome sequencing (WGS) seems to be a promising approach, and long-read sequencing is especially useful for the investigation of mobile genetic elements carrying antibiotic resistance genes, such as plasmids. We have performed short- and long read sequencing of three carbapenem-resistant K. pneumoniae isolates obtained from COVID-19 patients in a dedicated ICU of a multipurpose medical center, which belonged to the same clone according to cgMLST analysis, in order to understand the differences in their resistance profiles. We have revealed the presence of a small plasmid carrying aph(3′)-VIa gene providing resistance to amikacin in one of these isolates, which corresponded perfectly to its phenotypic resistance profile. We believe that the results obtained will facilitate further elucidating of antibiotic resistance mechanisms for this important pathogen, and highlight the need for continuous genomic epidemiology surveillance of clinical K. pneumoniae isolates.
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6
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Ju Y, Pu M, Sun K, Song G, Geng J. Nanopore Electrochemistry for Pathogen Detection. Chem Asian J 2022; 17:e202200774. [PMID: 36069587 DOI: 10.1002/asia.202200774] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2022] [Revised: 09/06/2022] [Indexed: 11/05/2022]
Abstract
Pathogen infections have seriously threatened human health, and there is an urgent demand for rapid and efficient pathogen identification to provide instructions in clinical diagnosis and therapeutic intervention. Recently, nanopore technology, a rapidly maturing technology which delivers ultrasensitive sensing and high throughput in real-time and at low cost, has achieved success in pathogen detection. Furthermore, the remarkable development of nanopore sequencing, for example, the MinION sequencer from Oxford Nanopore Technologies (ONT) as a competitive sequencing technology, has facilitated the rapid analysis of disease-related microbiomes at the whole-genome level and on a large scale. Here, we highlighted recent advances in nanopore approaches for pathogen detection at the single-molecule level. We also overviewed the applications of nanopore sequencing in pathogenic bacteria identification and diagnosis. In the end, we discussed the challenges and future developments of nanopore technology as promising tools for the management of infections, which may be helpful to aid understanding as well as decision-making.
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Affiliation(s)
- Yuan Ju
- Sichuan University, Sichuan University Library, CHINA
| | - Mengjun Pu
- Sichuan University, Department of Laboratory Medicine, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University and Collaborative Innovation Center, CHINA
| | - Ke Sun
- Sichuan University, Department of Laboratory Medicine, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University and Collaborative Innovation Center, CHINA
| | - Guiqin Song
- North Sichuan Medical College [Search North Sichuan Medical College]: North Sichuan Medical University, Shool of Basic Medical Sciences and Forensic Medicine, CHINA
| | - Jia Geng
- Sichuan University, State Key Laboratory of Biotherapy, No 17 Section 3 of South Renmin Rd, 610040, Chengdu, CHINA
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Comparative analysis of multiplexed PCR and short- and long-read whole genome sequencing to investigate a large Klebsiella pneumoniae outbreak in New York State. Diagn Microbiol Infect Dis 2022; 104:115765. [DOI: 10.1016/j.diagmicrobio.2022.115765] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2022] [Revised: 06/30/2022] [Accepted: 07/05/2022] [Indexed: 11/18/2022]
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Genome-Wide Association Study Reveals Host Factors Affecting Conjugation in Escherichia coli. Microorganisms 2022; 10:microorganisms10030608. [PMID: 35336183 PMCID: PMC8954029 DOI: 10.3390/microorganisms10030608] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2022] [Revised: 03/08/2022] [Accepted: 03/10/2022] [Indexed: 02/04/2023] Open
Abstract
The emergence and dissemination of antibiotic resistance threaten the treatment of common bacterial infections. Resistance genes are often encoded on conjugative elements, which can be horizontally transferred to diverse bacteria. In order to delay conjugative transfer of resistance genes, more information is needed on the genetic determinants promoting conjugation. Here, we focus on which bacterial host factors in the donor assist transfer of conjugative plasmids. We introduced the broad-host-range plasmid pKJK10 into a diverse collection of 113 Escherichia coli strains and measured by flow cytometry how effectively each strain transfers its plasmid to a fixed E. coli recipient. Differences in conjugation efficiency of up to 2.7 and 3.8 orders of magnitude were observed after mating for 24 h and 48 h, respectively. These differences were linked to the underlying donor strain genetic variants in genome-wide association studies, thereby identifying candidate genes involved in conjugation. We confirmed the role of fliF, fliK, kefB and ucpA in the donor ability of conjugative elements by validating defects in the conjugation efficiency of the corresponding lab strain single-gene deletion mutants. Based on the known cellular functions of these genes, we suggest that the motility and the energy supply, the intracellular pH or salinity of the donor affect the efficiency of plasmid transfer. Overall, this work advances the search for targets for the development of conjugation inhibitors, which can be administered alongside antibiotics to more effectively treat bacterial infections.
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9
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Whittle E, Yonkus JA, Jeraldo P, Alva-Ruiz R, Nelson H, Kendrick ML, Grys TE, Patel R, Truty MJ, Chia N. Optimizing Nanopore Sequencing for Rapid Detection of Microbial Species and Antimicrobial Resistance in Patients at Risk of Surgical Site Infections. mSphere 2022; 7:e0096421. [PMID: 35171692 PMCID: PMC8849348 DOI: 10.1128/msphere.00964-21] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
Surgical site infections (SSI) are a significant burden to patients and health care systems. We evaluated the use of Nanopore sequencing (NS) to rapidly detect microbial species and antimicrobial resistance (AMR) genes present in intraoperative bile aspirates. Bile aspirates from 42 patients undergoing pancreatic head resection were included. Three methods of DNA extraction using mechanical cell lysis or protease cell lysis were compared to determine the optimum method of DNA extraction. The impact of host DNA depletion, sequence run duration, and use of different AMR gene databases was also assessed. To determine clinical value, NS results were compared to standard culture (SC) results. NS identified microbial species in all culture positive samples. Mechanical lysis improved NS detection of cultured species from 60% to 76%, enabled detection of fungal species, and increased AMR predictions. Host DNA depletion improved detection of streptococcal species and AMR correlation with SC. Selection of AMR database influenced the number of AMR hits and resistance profile of 13 antibiotics. AMR prediction using CARD and ResFinder 4.1 correctly predicted 79% and 81% of the bile antibiogram, respectively. Sequence run duration positively correlated with detection of AMR genes. A minimum of 6 h was required to characterize the biliary microbes, resulting in a turnaround time of 14 h. Rapid identification of microbial species and AMR genes can be achieved by NS. NS results correlated with SC, suggesting that NS may be useful in guiding early antimicrobial therapy postsurgery. IMPORTANCE Surgical site infections (SSI) are a significant burden to patients and health care systems. They increase mortality rates, length of hospital stays, and associated health care costs. To reduce the risk of SSI, surgical patients are administered broad-spectrum antibiotics that are later adapted to target microbial species detected at the site of surgical incision. Use of broad-spectrum antibiotics can be harmful to the patient. We wanted to develop a rapid method of detecting microbial species and their antimicrobial resistance phenotypes. We developed a method of detecting microbial species and predicting resistance phenotypes using Nanopore sequencing. Results generated using Nanopore sequencing were similar to current methods of detection but were obtained in a significantly shorter amount of time. This suggests that Nanopore sequencing could be used to tailor antibiotics in surgical patients and reduce use of broad-spectrum antibiotics.
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Affiliation(s)
- Emma Whittle
- Division of Surgical Research, Department of Surgery, Mayo Clinicgrid.66875.3a, Rochester, Minnesota, USA
| | - Jennifer A. Yonkus
- Division of Hepatobiliary & Pancreatic Surgery, Department of Surgery, Mayo Clinicgrid.66875.3a, Rochester, Minnesota, USA
| | - Patricio Jeraldo
- Division of Surgical Research, Department of Surgery, Mayo Clinicgrid.66875.3a, Rochester, Minnesota, USA
| | - Roberto Alva-Ruiz
- Division of Hepatobiliary & Pancreatic Surgery, Department of Surgery, Mayo Clinicgrid.66875.3a, Rochester, Minnesota, USA
| | - Heidi Nelson
- Division of Research and Optimal Patient Care, Cancer Programs, American College of Surgeonsgrid.417954.a, Chicago, Illinois, USA
| | - Michael L. Kendrick
- Division of Hepatobiliary & Pancreatic Surgery, Department of Surgery, Mayo Clinicgrid.66875.3a, Rochester, Minnesota, USA
| | - Thomas E. Grys
- Department of Laboratory Medicine and Pathology, Mayo Clinicgrid.66875.3a, Phoenix, Arizona, USA
| | - Robin Patel
- Division of Clinical Microbiology, Department of Laboratory Medicine and Pathology, Mayo Clinicgrid.66875.3a, Rochester, Minnesota, USA
| | - Mark J. Truty
- Division of Hepatobiliary & Pancreatic Surgery, Department of Surgery, Mayo Clinicgrid.66875.3a, Rochester, Minnesota, USA
| | - Nicholas Chia
- Division of Surgical Research, Department of Surgery, Mayo Clinicgrid.66875.3a, Rochester, Minnesota, USA
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A novel plasmid entry exclusion system in pKPC_UVA01, a promiscuous conjugative plasmid carrying the
bla
KPC
carbapenemase gene. Antimicrob Agents Chemother 2022; 66:e0232221. [PMID: 35007138 PMCID: PMC8923210 DOI: 10.1128/aac.02322-21] [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] [Indexed: 11/20/2022] Open
Abstract
Conjugative plasmids are the principal mediator in the emergence and spread of antibiotic resistance genes in Enterobacterales. Plasmid entry exclusion (EEX) systems can restrict their transfer into the recipient bacteria carrying closely related plasmids. In this study, we identified and characterized a novel plasmid entry exclusion system in a carbapenem resistance plasmid pKPC_UVA01, which is responsible for widespread dissemination of the blaKPC carbapenemase gene among Enterobacterales in the United States. The identified eex gene in the recipient strain of different Enterobacterales species inhibited the conjugation transfer of pKPC_UVA01 plasmids at a range of 200- to 400-fold, and this inhibition was found to be a dose-dependent function of the EEX protein in recipient cells. The C terminus truncated version of eex or eex with an early termination codon at the C terminus region alleviated the inhibition of conjugative transfer. Unlike the strict specificity of plasmid exclusion by the known EEX protein, the newly identified EEX in the recipient strain could inhibit the transfer of IncP and IncN plasmids. The eex gene from the plasmid pKPC_UVA01 was not required for conjugative transfer but was essential in the donor bacteria for entry exclusion of this plasmid. This was a novel function of a single protein that is essential in both donor and recipient bacteria for the entry exclusion of a plasmid. This eex gene is found to be distributed in multidrug resistance plasmids similar to pKPC_UVA01 in different Enterobacterales species and may contribute to the stability of this plasmid type by controlling its transfer.
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Chan JL, Nazarian E, Musser KA, Snavely EA, Fung M, Doernberg SB, Pouch SM, Leekha S, Anesi JA, Kodiyanplakkal RP, Turbett SE, Walters MS, Epstein L. Prevalence of carbapenemase-producing organisms among hospitalized solid organ transplant recipients, five U.S. hospitals, 2019-2020. Transpl Infect Dis 2022; 24:e13785. [PMID: 34989092 DOI: 10.1111/tid.13785] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2021] [Revised: 11/29/2021] [Accepted: 12/03/2021] [Indexed: 11/29/2022]
Abstract
BACKGROUND Passive reporting to the Centers for Disease Control and Prevention has identified carbapenemase-producing organisms (CPOs) among solid organ transplant (SOT) recipients, potentially representing an emerging source of spread. We analyzed CPO prevalence in wards where SOT recipients receive inpatient care to inform public health action to prevent transmission. METHODS From September 2019 to June 2020, five U.S. hospitals conducted consecutive point prevalence surveys (PPS) of all consenting patients admitted to transplant units, regardless of transplant status. We used the Cepheid Xpert® Carba-R assay to identify carbapenemase genes (blaKPC , blaNDM , blaVIM , blaIMP , blaOXA-48 ) from rectal swabs. Laboratory-developed molecular tests were used to retrospectively test for a wider range of blaIMP and blaOXA variants. RESULTS In total, 154 patients were screened and 92 (60%) were SOT recipients. CPOs were detected among 7 (8%) SOT recipients, from two of five screened hospitals: 4 blaKPC , 1 blaNDM , 2 blaOXA-23 . CPOs were detected in 2 (3%) of 62 non-transplant patients. In three of five participating hospitals, CPOs were not identified among any patients admitted to transplant units. CONCLUSIONS Longitudinal surveillance in transplant units, as well as PPS in areas with diverse CPO epidemiology, may inform the utility of routine screening in SOT units to prevent the spread of CPOs. This article is protected by copyright. All rights reserved.
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Affiliation(s)
- June L Chan
- Wadsworth Center, New York State Department of Health, Albany, NY
| | | | | | - Emily A Snavely
- Wadsworth Center, New York State Department of Health, Albany, NY
| | - Monica Fung
- University of California San Francisco, San Francisco, CA
| | | | | | - Surbhi Leekha
- University of Maryland Medical Center, Baltimore, MD
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12
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"Answers in hours": A prospective clinical study using nanopore sequencing for bile duct cultures. Surgery 2021; 171:693-702. [PMID: 34973809 DOI: 10.1016/j.surg.2021.09.037] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2021] [Revised: 08/17/2021] [Accepted: 09/07/2021] [Indexed: 12/12/2022]
Abstract
BACKGROUND Surgical site infection is a major source of morbidity in patients undergoing pancreatic head resection and is often from organisms in intraoperative bile duct cultures. As such, many institutions use prolonged prophylactic antibiotics and tailor based on bile duct cultures. However, standard cultures take days, leaving many patients unnecessarily on prolonged antibiotics. Nanopore sequencing can provide data in hours and, thus, has the potential to improve antibiotic stewardship. The present study investigates the feasibility of nanopore sequencing in intraoperative bile samples. METHODS Patients undergoing pancreatic head resection were included. Intra-operative bile microbial profiles were determined with standard cultures and nanopore sequencing. Antibiotic recommendations were generated, and time-to-results determined for both methods. Organism yields, resistance patterns, antibiotic recommendations, and costs were compared. RESULTS Out of 42 patients, 22 (52%) had samples resulting in positive standard cultures. All positive standard cultures had microbes detected using nanopore sequencing. All 20 patients with negative standard cultures had negative nanopore sequencing. Nanopore sequencing detected more bacterial species compared to standard cultures (10.5 vs 4.4, p < 0.05) and more resistance genotypes (10.3 vs 2.7, p < 0.05). Antimicrobial recommendations based on nanopore sequencing provided coverage for standard cultures in 27 out of 44 (61%) samples, with broader coverage recommended by nanopore sequencing in 13 out of 27 (48%) of these samples. Nanopore sequencing results were faster (8 vs 98 hours) than standard cultures but had higher associated costs ($165 vs $38.49). CONCLUSION Rapid microbial profiling with nanopore sequencing is feasible with broader organism and resistance profiling compared to standard cultures. Nanopore sequencing has perfect negative predictive value and can potentially improve antibiotic stewardship; thus, a randomized control trial is under development.
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Prussing C, Canulla T, Singh N, McAuley P, Gosciminski M, King E, Bandy U, Machado MJ, Karlsson M, Musser KA, Huard RC, Nazarian EJ. Characterization of the First Carbapenem-Resistant Pseudomonas aeruginosa Clinical Isolate Harboring blaSIM-1 from the United States. Antimicrob Agents Chemother 2021; 65:e0106621. [PMID: 34339276 PMCID: PMC8448160 DOI: 10.1128/aac.01066-21] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Affiliation(s)
- Catharine Prussing
- Wadsworth Center, New York State Department of Health, Albany, New York, USA
| | - Theresa Canulla
- Center for Biological Sciences, Providence, Rhode Island, USA
- Rhode Island State Health Laboratory, Providence, Rhode Island, USA
- Rhode Island Department of Health, Providence, Rhode Island, USA
| | - Navjot Singh
- Wadsworth Center, New York State Department of Health, Albany, New York, USA
| | - Patricia McAuley
- Rhode Island Department of Health, Providence, Rhode Island, USA
- Center for Acute Infectious Disease Epidemiology, Providence, Rhode Island, USA
| | - Michael Gosciminski
- Rhode Island Department of Health, Providence, Rhode Island, USA
- Center for Acute Infectious Disease Epidemiology, Providence, Rhode Island, USA
| | - Ewa King
- Rhode Island State Health Laboratory, Providence, Rhode Island, USA
- Rhode Island Department of Health, Providence, Rhode Island, USA
| | - Utpala Bandy
- Rhode Island Department of Health, Providence, Rhode Island, USA
- Center for Acute Infectious Disease Epidemiology, Providence, Rhode Island, USA
| | - María-José Machado
- Division of Healthcare Quality Promotion, Centers for Disease Control and Prevention, Atlanta, Georgia, USA
| | - Maria Karlsson
- Division of Healthcare Quality Promotion, Centers for Disease Control and Prevention, Atlanta, Georgia, USA
| | - Kimberlee A. Musser
- Wadsworth Center, New York State Department of Health, Albany, New York, USA
| | - Richard C. Huard
- Center for Biological Sciences, Providence, Rhode Island, USA
- Rhode Island State Health Laboratory, Providence, Rhode Island, USA
- Rhode Island Department of Health, Providence, Rhode Island, USA
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14
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Lynch JP, Clark NM, Zhanel GG. Escalating antimicrobial resistance among Enterobacteriaceae: focus on carbapenemases. Expert Opin Pharmacother 2021; 22:1455-1473. [PMID: 33823714 DOI: 10.1080/14656566.2021.1904891] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
Introduction: Over the past few decades, antimicrobial resistance (AMR) has skyrocketed globally among bacteria within the Family Enterobacteriaceae (i.e. Enterobacter spp, Klebsiella spp, Escherichia coli, Proteus spp, Serratia marcescens, Citrobacter spp, and others). Enterobacteriaceae are intestinal flora and are important pathogens in nosocomial and community settings. Enterobacteriaceae spread easily between humans and may acquire AMR via plasmids or other mobile resistance elements. The emergence and spread of multidrug resistant (MDR) clones have greatly limited therapeutic options. Some infections are untreatable with existing antimicrobials.Areas covered: The authors discuss the escalation of CRE globally, the epidemiology and outcomes of CRE infections, the optimal therapy, and the potential role of several new antimicrobials to combat MDR organisms. An exhaustive search for literature related to Enterobacteriaceae was performed using PubMed, using the following key words: antimicrobial resistance; carbapenemases; Enterobacterales; Enterobacteriaceae; Klebsiella pneumoniae; Escherichia coli; global epidemiology; metallo-β-lactamases; multidrug resistance; New Delhi Metalloproteinase-1 (NDM-1); plasmidsExpert opinion: Innovation and development of new classes of antibacterial agents are critical to expand effective therapeutic options. The authors encourage the judicious use of antibiotics and aggressive infection-control measures are essential to minimize the spread of AMR.
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Affiliation(s)
- Joseph P Lynch
- Division of Pulmonary, Critical Care Medicine, Allergy, and Clinical Immunology;The David Geffen School of Medicine at UCLA, Los Angeles, CA
| | - Nina M Clark
- The Division of Infectious Diseases, Department of Medicine, Stritch School of Medicine, Loyola University Chicago, Maywood, IL
| | - George G Zhanel
- Department of Medical Microbiology/Infectious Diseases, Max Rady College of Medicine, University of Manitoba, Winnipeg, Manitoba, Canada
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Abstract
PURPOSE OF REVIEW The advancement of molecular techniques such as whole-genome sequencing (WGS) has revolutionized the field of bacterial strain typing, with important implications for epidemiological surveillance and outbreak investigations. This review summarizes state-of-the-art techniques in strain typing and examines barriers faced by clinical and public health laboratories in implementing these new methodologies. RECENT FINDINGS WGS-based methodologies are on track to become the new 'gold standards' in bacterial strain typing, replacing traditional methods like pulsed-field gel electrophoresis and multilocus sequence typing. These new techniques have an improved ability to identify genetic relationships among organisms of interest. Further, advances in long-read sequencing approaches will likely provide a highly discriminatory tool to perform pangenome analyses and characterize relevant accessory genome elements, including mobile genetic elements carrying antibiotic resistance determinants in real time. Barriers to widespread integration of these approaches include a lack of standardized workflows and technical training. SUMMARY Genomic bacterial strain typing has facilitated a paradigm shift in clinical and molecular epidemiology. The increased resolution that these new techniques provide, along with epidemiological data, will facilitate the rapid identification of transmission routes with high confidence, leading to timely and effective deployment of infection control and public health interventions in outbreak settings.
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16
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Meneguzzi M, Pissetti C, Rebelatto R, Trachsel J, Kuchiishi SS, Reis AT, Guedes RMC, Leão JA, Reichen C, Kich JD. Re-Emergence of Salmonellosis in Hog Farms: Outbreak and Bacteriological Characterization. Microorganisms 2021; 9:947. [PMID: 33925758 PMCID: PMC8146755 DOI: 10.3390/microorganisms9050947] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2021] [Revised: 04/23/2021] [Accepted: 04/25/2021] [Indexed: 11/17/2022] Open
Abstract
Clinical salmonellosis has been increasing significantly in Brazil in recent years. A total of 130 outbreaks distributed among 10 swine-producing states were investigated. One representative Salmonella isolate from each outbreak was characterized through serotyping, antimicrobial resistance profiles, PFGE, and WGS. From 130 outbreaks: 50 were enteric, 48 were septicemic, 17 cases were characterized as hepato-biliary invasive, 13 as nodal and two were not classified. The most prevalent serovars were a monophasic variant of S. typhimurium (55/130), Choleraesuis (46/130), and Typhimurium (14/130). Most of the strains (86.92%) demonstrated a high rate of multi-drug resistance. The identification of a major Choleraesuis clonal group in several Brazilian states sharing the same resistance genes suggested that these strains were closely related. Six strains from this clonal group were sequenced, revealing the same ST-145 and 11 to 47 different SNPs. The detected plasmid type showed multiple marker genes as RepA_1_pKPC-CAV1321, the first to be reported in Salmonella. All AMR genes detected in the genomes were likely present on plasmids, and their phenotype was related to genotypic resistance genes. These findings reveal that salmonellosis is endemic in the most important pig-producing states in Brazil, emphasizing the need to make data available to aid in reducing its occurrence.
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Affiliation(s)
- Mariana Meneguzzi
- Curso de Medicina Veterinária, Instituto Federal Catarinense, Concórdia 89703-720, SC, Brazil; (M.M.); (C.R.)
| | - Caroline Pissetti
- Departamento de Medicina Veterinária Preventiva, Faculdade de Veterinária, Universidade Federal do Rio Grande do Sul, Porto Alegre 91540-000, RS, Brazil;
| | - Raquel Rebelatto
- Embrapa Suínos e Aves, Empresa Brasileira de Pesquisa Agropecuária, Concórdia 89715-899, SC, Brazil;
| | - Julian Trachsel
- National Animal Disease Center, Food Safety and Enteric Pathogens, Ames, IA 50010, USA;
| | | | - Adrienny Trindade Reis
- Centro de Diagnóstico e Monitoramento Animal, CDMA, Belo Horizonte 30411-191, MG, Brazil;
| | - Roberto Maurício Carvalho Guedes
- Departamento de Clínica e Cirurgia Veterinária, Escola de Veterinária, Universidade Federal de Minas Gerais, Belo Horizonte 31270-901, MG, Brazil;
| | | | - Caroline Reichen
- Curso de Medicina Veterinária, Instituto Federal Catarinense, Concórdia 89703-720, SC, Brazil; (M.M.); (C.R.)
| | - Jalusa Deon Kich
- Embrapa Suínos e Aves, Empresa Brasileira de Pesquisa Agropecuária, Concórdia 89715-899, SC, Brazil;
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Borelli TC, Lovate GL, Scaranello AFT, Ribeiro LF, Zaramela L, Pereira-dos-Santos FM, Silva-Rocha R, Guazzaroni ME. Combining Functional Genomics and Whole-Genome Sequencing to Detect Antibiotic Resistance Genes in Bacterial Strains Co-Occurring Simultaneously in a Brazilian Hospital. Antibiotics (Basel) 2021; 10:antibiotics10040419. [PMID: 33920372 PMCID: PMC8070361 DOI: 10.3390/antibiotics10040419] [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] [Subscribe] [Scholar Register] [Received: 02/24/2021] [Revised: 04/01/2021] [Accepted: 04/06/2021] [Indexed: 01/01/2023] Open
Abstract
(1) Background: The rise of multi-antibiotic resistant bacteria represents an emergent threat to human health. Here, we investigate antibiotic resistance mechanisms in bacteria of several species isolated from an intensive care unit in Brazil. (2) Methods: We used whole-genome analysis to identify antibiotic resistance genes (ARGs) and plasmids in 34 strains of Gram-negative and Gram-positive bacteria, providing the first genomic description of Morganella morganii and Ralstonia mannitolilytica clinical isolates from South America. (3) Results: We identified a high abundance of beta-lactamase genes in resistant organisms, including seven extended-spectrum beta-lactamases (OXA-1, OXA-10, CTX-M-1, KPC, TEM, HYDRO, BLP) shared between organisms from different species. Additionally, we identified several ARG-carrying plasmids indicating the potential for a fast transmission of resistance mechanism between bacterial strains. Furthermore, we uncovered two pairs of (near) identical plasmids exhibiting multi-drug resistance. Finally, since many highly resistant strains carry several different ARGs, we used functional genomics to investigate which of them were indeed functional. In this sense, for three bacterial strains (Escherichia coli, Klebsiella pneumoniae, and M. morganii), we identified six beta-lactamase genes out of 15 predicted in silico as those mainly responsible for the resistance mechanisms observed, corroborating the existence of redundant resistance mechanisms in these organisms. (4) Conclusions: Systematic studies similar to the one presented here should help to prevent outbreaks of novel multidrug-resistant bacteria in healthcare facilities.
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Affiliation(s)
- Tiago Cabral Borelli
- Department of Biology, Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto, Universidade de São Paulo, Av. Bandeirantes 3900, Ribeirão Preto, SP 14049-901, Brazil; (T.C.B.); (G.L.L.); (A.F.T.S.); (L.F.R.)
| | - Gabriel Lencioni Lovate
- Department of Biology, Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto, Universidade de São Paulo, Av. Bandeirantes 3900, Ribeirão Preto, SP 14049-901, Brazil; (T.C.B.); (G.L.L.); (A.F.T.S.); (L.F.R.)
| | - Ana Flavia Tonelli Scaranello
- Department of Biology, Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto, Universidade de São Paulo, Av. Bandeirantes 3900, Ribeirão Preto, SP 14049-901, Brazil; (T.C.B.); (G.L.L.); (A.F.T.S.); (L.F.R.)
| | - Lucas Ferreira Ribeiro
- Department of Biology, Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto, Universidade de São Paulo, Av. Bandeirantes 3900, Ribeirão Preto, SP 14049-901, Brazil; (T.C.B.); (G.L.L.); (A.F.T.S.); (L.F.R.)
| | - Livia Zaramela
- Department of Pediatrics, University of California San Diego, San Diego, CA 92161, USA;
| | - Felipe Marcelo Pereira-dos-Santos
- Department of Cell and Molecular Biology, Faculdade de Medicina de Ribeirão Preto, University of São Paulo, Av. Bandeirantes 3900, Ribeirão Preto, SP 14049-900, Brazil; (F.M.P.-d.-S.); (R.S.-R.)
| | - Rafael Silva-Rocha
- Department of Cell and Molecular Biology, Faculdade de Medicina de Ribeirão Preto, University of São Paulo, Av. Bandeirantes 3900, Ribeirão Preto, SP 14049-900, Brazil; (F.M.P.-d.-S.); (R.S.-R.)
| | - María-Eugenia Guazzaroni
- Department of Biology, Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto, Universidade de São Paulo, Av. Bandeirantes 3900, Ribeirão Preto, SP 14049-901, Brazil; (T.C.B.); (G.L.L.); (A.F.T.S.); (L.F.R.)
- Correspondence:
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Intrapatient transfer of an uncommon carbapenemase in Nebraska. Infect Control Hosp Epidemiol 2021; 43:535-536. [PMID: 33691811 DOI: 10.1017/ice.2021.33] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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