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Nutrients influence the dynamics of Klebsiella pneumoniae carbapenemase producing enterobacterales in transplanted hospital sinks.

Kotay SM, Parikh HI, Barry K, Gweon HS, Guilford W, Carroll J, Mathers AJ.

Water Res. 2020 Mar 13;176:115707. doi: 10.1016/j.watres.2020.115707. [Epub ahead of print]


Reconciling the potentially irreconcilable? Genotypic and phenotypic amoxicillin-clavulanate resistance in Escherichia coli.

Davies TJ, Stoesser N, Sheppard AE, Abuoun M, Fowler P, Swann J, Quan TP, Griffiths D, Vaughan A, Morgan M, Phan HTT, Jeffery KJ, Andersson M, Ellington MJ, Ekelund O, Woodford N, Mathers AJ, Bonomo RA, Crook DW, Peto TEA, Anjum MF, Walker AS.

Antimicrob Agents Chemother. 2020 Mar 23. pii: AAC.02026-19. doi: 10.1128/AAC.02026-19. [Epub ahead of print]


Genomic epidemiology of complex, multi-species, plasmid-borne bla KPC carbapenemase in Enterobacterales in the UK, 2009-2014.

Stoesser N, Phan HTT, Seale AC, Aiken Z, Thomas S, Smith M, Wyllie D, George R, Sebra R, Mathers AJ, Vaughan A, Peto TEA, Ellington MJ, Hopkins KL, Crook DW, Orlek A, Welfare W, Cawthorne J, Lenney C, Dodgson A, Woodford N, Walker AS; TRACE Investigators' Group.

Antimicrob Agents Chemother. 2020 Feb 24. pii: AAC.02244-19. doi: 10.1128/AAC.02244-19. [Epub ahead of print]


Collaborative Antimicrobial Stewardship for Surgeons.

Robinson ED, Volles DF, Kramme K, Mathers AJ, Sawyer RG.

Infect Dis Clin North Am. 2020 Mar;34(1):97-108. doi: 10.1016/j.idc.2019.11.002. Review.


Genomic dynamics of species and mobile genetic elements in a prolonged blaIMP-4-associated carbapenemase outbreak in an Australian hospital.

Kizny Gordon A, Phan HTT, Lipworth SI, Cheong E, Gottlieb T, George S, Peto TEA, Mathers AJ, Walker AS, Crook DW, Stoesser N.

J Antimicrob Chemother. 2020 Apr 1;75(4):873-882. doi: 10.1093/jac/dkz526.


Risk factors for Klebsiella pneumoniae carbapenemase (KPC) gene acquisition and clinical outcomes across multiple bacterial species.

Mathers AJ, Vegesana K, German-Mesner I, Ainsworth J, Pannone A, Crook DW, Sifri CD, Sheppard A, Stoesser N, Peto T, Walker AS, Eyre DW.

J Hosp Infect. 2020 Jan 10. pii: S0195-6701(20)30007-4. doi: 10.1016/j.jhin.2020.01.005. [Epub ahead of print]


Managing All the Genotypic Knowledge: Approach to a Septic Patient Colonized by Different Enterobacteriales with Unique Carbapenemases.

Park SC, Wailan AM, Barry KE, Vegesana K, Carroll J, Mathers AJ, Miller WR, Munita JM.

Antimicrob Agents Chemother. 2019 Jul 25;63(8). pii: e00029-19. doi: 10.1128/AAC.00029-19. Print 2019 Aug.


The Role of fosA in Challenges with Fosfomycin Susceptibility Testing of Multispecies Klebsiella pneumoniae Carbapenemase-Producing Clinical Isolates.

Elliott ZS, Barry KE, Cox HL, Stoesser N, Carroll J, Vegesana K, Kotay S, Sheppard AE, Wailan A, Crook DW, Parikh H, Mathers AJ.

J Clin Microbiol. 2019 Sep 24;57(10). pii: e00634-19. doi: 10.1128/JCM.00634-19. Print 2019 Oct.


Use of a cohorting-unit and systematic surveillance cultures to control a Klebsiella pneumoniae carbapenemase (KPC)-producing Enterobacteriaceae outbreak.

Reeme AE, Bowler SL, Buchan BW, Graham MB, Behrens E, Singh S, Hong JC, Arvan J, Hyke JW, Palen L, Savage S, Seliger H, Huerta S, Ledeboer NA, Kotay S, Mathers AJ, Cooper VS, Mustapha MM, Mettus RT, Doi Y, Munoz-Price LS.

Infect Control Hosp Epidemiol. 2019 Jul;40(7):767-773. doi: 10.1017/ice.2019.99. Epub 2019 May 14.


Clinical Yield of a Molecular Diagnostic Panel for Enteric Pathogens in Adult Outpatients With Diarrhea and Validation of Guidelines-Based Criteria for Testing.

Clark SD, Sidlak M, Mathers AJ, Poulter M, Platts-Mills JA.

Open Forum Infect Dis. 2019 Apr 16;6(4):ofz162. doi: 10.1093/ofid/ofz162. eCollection 2019 Apr.


Don't overlook the little guy: An evaluation of the frequency of small plasmids co-conjugating with larger carbapenemase gene containing plasmids.

Barry KE, Wailan AM, Sheppard AE, Crook D, Vegesana K, Stoesser N, Parikh HI, Sebra R, Mathers AJ.

Plasmid. 2019 May;103:1-8. doi: 10.1016/j.plasmid.2019.03.005. Epub 2019 Mar 27.


Klebsiella quasipneumoniae Provides a Window into Carbapenemase Gene Transfer, Plasmid Rearrangements, and Patient Interactions with the Hospital Environment.

Mathers AJ, Crook D, Vaughan A, Barry KE, Vegesana K, Stoesser N, Parikh HI, Sebra R, Kotay S, Walker AS, Sheppard AE.

Antimicrob Agents Chemother. 2019 May 24;63(6). pii: e02513-18. doi: 10.1128/AAC.02513-18. Print 2019 Jun.


Meropenem-Vaborbactam as Salvage Therapy for Ceftazidime-Avibactam-Resistant Klebsiella pneumoniae Bacteremia and Abscess in a Liver Transplant Recipient.

Athans V, Neuner EA, Hassouna H, Richter SS, Keller G, Castanheira M, Brizendine KD, Mathers AJ.

Antimicrob Agents Chemother. 2018 Dec 21;63(1). pii: e01551-18. doi: 10.1128/AAC.01551-18. Print 2019 Jan.


TETyper: a bioinformatic pipeline for classifying variation and genetic contexts of transposable elements from short-read whole-genome sequencing data.

Sheppard AE, Stoesser N, German-Mesner I, Vegesana K, Sarah Walker A, Crook DW, Mathers AJ.

Microb Genom. 2018 Dec;4(12). doi: 10.1099/mgen.0.000232. Epub 2018 Nov 22.


Droplet- Rather than Aerosol-Mediated Dispersion Is the Primary Mechanism of Bacterial Transmission from Contaminated Hand-Washing Sink Traps.

Kotay SM, Donlan RM, Ganim C, Barry K, Christensen BE, Mathers AJ.

Appl Environ Microbiol. 2019 Jan 9;85(2). pii: e01997-18. doi: 10.1128/AEM.01997-18. Print 2019 Jan 15.


Effect and Safety of Meropenem-Vaborbactam versus Best-Available Therapy in Patients with Carbapenem-Resistant Enterobacteriaceae Infections: The TANGO II Randomized Clinical Trial.

Wunderink RG, Giamarellos-Bourboulis EJ, Rahav G, Mathers AJ, Bassetti M, Vazquez J, Cornely OA, Solomkin J, Bhowmick T, Bishara J, Daikos GL, Felton T, Furst MJL, Kwak EJ, Menichetti F, Oren I, Alexander EL, Griffith D, Lomovskaya O, Loutit J, Zhang S, Dudley MN, Kaye KS.

Infect Dis Ther. 2018 Dec;7(4):439-455. doi: 10.1007/s40121-018-0214-1. Epub 2018 Oct 1.


A Large, Refractory Nosocomial Outbreak of Klebsiella pneumoniae Carbapenemase-Producing Escherichia coli Demonstrates Carbapenemase Gene Outbreaks Involving Sink Sites Require Novel Approaches to Infection Control.

Decraene V, Phan HTT, George R, Wyllie DH, Akinremi O, Aiken Z, Cleary P, Dodgson A, Pankhurst L, Crook DW, Lenney C, Walker AS, Woodford N, Sebra R, Fath-Ordoubadi F, Mathers AJ, Seale AC, Guiver M, McEwan A, Watts V, Welfare W, Stoesser N, Cawthorne J; TRACE Investigators’ Group.

Antimicrob Agents Chemother. 2018 Nov 26;62(12). pii: e01689-18. doi: 10.1128/AAC.01689-18. Print 2018 Dec.


The effect of rapid diagnostic testing with Infectious Diseases fellow consultative intervention on the management of enterococcal bloodstream infection.

Gray ME, Cox HL, Donohue LE, Poulter MD, Eby JC, Mathers AJ.

Diagn Microbiol Infect Dis. 2018 Dec;92(4):319-324. doi: 10.1016/j.diagmicrobio.2018.07.004. Epub 2018 Jul 9.


Characterizations of handwashing sink activities in a single hospital medical intensive care unit.

Grabowski M, Lobo JM, Gunnell B, Enfield K, Carpenter R, Barnes L, Mathers AJ.

J Hosp Infect. 2018 Nov;100(3):e115-e122. doi: 10.1016/j.jhin.2018.04.025. Epub 2018 May 5.


Reduced Clostridium difficile Tests and Laboratory-Identified Events With a Computerized Clinical Decision Support Tool and Financial Incentive.

Madden GR, German Mesner I, Cox HL, Mathers AJ, Lyman JA, Sifri CD, Enfield KB.

Infect Control Hosp Epidemiol. 2018 Jun;39(6):737-740. doi: 10.1017/ice.2018.53. Epub 2018 Apr 12.


Molecular diagnosis of antimicrobial resistance in Escherichia coli.

Fleece ME, Pholwat S, Mathers AJ, Houpt ER.

Expert Rev Mol Diagn. 2018 Mar;18(3):207-217. doi: 10.1080/14737159.2018.1439381. Epub 2018 Feb 19. Review.


Intensive Care Unit Wastewater Interventions to Prevent Transmission of Multispecies Klebsiella pneumoniae Carbapenemase-Producing Organisms.

Mathers AJ, Vegesana K, German Mesner I, Barry KE, Pannone A, Baumann J, Crook DW, Stoesser N, Kotay S, Carroll J, Sifri CD.

Clin Infect Dis. 2018 Jul 2;67(2):171-178. doi: 10.1093/cid/ciy052.


Reply to Weinbren and Collins.

Eby JC, Mathers AJ, Cox HL, Richey MM, Platts-Mills JA, Novicoff WM.

Clin Infect Dis. 2018 Apr 17;66(9):1485. doi: 10.1093/cid/cix1017. No abstract available.


Provider Role in Transmission of Carbapenem-Resistant Enterobacteriaceae.

Grabowski ME, Kang H, Wells KM, Sifri CD, Mathers AJ, Lobo JM.

Infect Control Hosp Epidemiol. 2017 Nov;38(11):1329-1334. doi: 10.1017/ice.2017.216. Epub 2017 Oct 24.


A Healthcare Improvement Intervention Combining Nucleic Acid Microarray Testing With Direct Physician Response for Management of Staphylococcus aureus Bacteremia.

Eby JC, Richey MM, Platts-Mills JA, Mathers AJ, Novicoff WM, Cox HL.

Clin Infect Dis. 2018 Jan 6;66(1):64-71. doi: 10.1093/cid/cix727.


Genomic epidemiology of global Klebsiella pneumoniae carbapenemase (KPC)-producing Escherichia coli.

Stoesser N, Sheppard AE, Peirano G, Anson LW, Pankhurst L, Sebra R, Phan HTT, Kasarskis A, Mathers AJ, Peto TEA, Bradford P, Motyl MR, Walker AS, Crook DW, Pitout JD.

Sci Rep. 2017 Jul 19;7(1):5917. doi: 10.1038/s41598-017-06256-2.


Enhanced Klebsiella pneumoniae Carbapenemase Expression from a Novel Tn4401 Deletion.

Cheruvanky A, Stoesser N, Sheppard AE, Crook DW, Hoffman PS, Weddle E, Carroll J, Sifri CD, Chai W, Barry K, Ramakrishnan G, Mathers AJ.

Antimicrob Agents Chemother. 2017 May 24;61(6). pii: e00025-17. doi: 10.1128/AAC.00025-17. Print 2017 Jun.


Spread from the Sink to the Patient: In Situ Study Using Green Fluorescent Protein (GFP)-Expressing Escherichia coli To Model Bacterial Dispersion from Hand-Washing Sink-Trap Reservoirs.

Kotay S, Chai W, Guilford W, Barry K, Mathers AJ.

Appl Environ Microbiol. 2017 Mar 31;83(8). pii: e03327-16. doi: 10.1128/AEM.03327-16. Print 2017 Apr 15.


The Hospital Water Environment as a Reservoir for Carbapenem-Resistant Organisms Causing Hospital-Acquired Infections-A Systematic Review of the Literature.

Kizny Gordon AE, Mathers AJ, Cheong EYL, Gottlieb T, Kotay S, Walker AS, Peto TEA, Crook DW, Stoesser N.

Clin Infect Dis. 2017 May 15;64(10):1435-1444. doi: 10.1093/cid/cix132. Review. Erratum in: Clin Infect Dis. 2017 Oct 15;65(8):1431-1433.


Chromosomal Integration of the Klebsiella pneumoniae Carbapenemase Gene, blaKPC, in Klebsiella Species Is Elusive but Not Rare.

Mathers AJ, Stoesser N, Chai W, Carroll J, Barry K, Cherunvanky A, Sebra R, Kasarskis A, Peto TE, Walker AS, Sifri CD, Crook DW, Sheppard AE.

Antimicrob Agents Chemother. 2017 Feb 23;61(3). pii: e01823-16. doi: 10.1128/AAC.01823-16. Print 2017 Mar.


Horizontal Transfer of Carbapenemase-Encoding Plasmids and Comparison with Hospital Epidemiology Data.

Hardiman CA, Weingarten RA, Conlan S, Khil P, Dekker JP, Mathers AJ, Sheppard AE, Segre JA, Frank KM.

Antimicrob Agents Chemother. 2016 Jul 22;60(8):4910-9. doi: 10.1128/AAC.00014-16. Print 2016 Aug.


Nested Russian Doll-Like Genetic Mobility Drives Rapid Dissemination of the Carbapenem Resistance Gene blaKPC.

Sheppard AE, Stoesser N, Wilson DJ, Sebra R, Kasarskis A, Anson LW, Giess A, Pankhurst LJ, Vaughan A, Grim CJ, Cox HL, Yeh AJ; Modernising Medical Microbiology (MMM) Informatics Group, Sifri CD, Walker AS, Peto TE, Crook DW, Mathers AJ.

Antimicrob Agents Chemother. 2016 May 23;60(6):3767-78. doi: 10.1128/AAC.00464-16. Print 2016 Jun.


A single-center experience with infections due to daptomycin-nonsusceptible Enterococcus faecium in liver transplant recipients.

Lewis JD, Enfield KB, Cox HL, Mathers AJ, Sifri CD.

Transpl Infect Dis. 2016 Jun;18(3):341-53. doi: 10.1111/tid.12523. Epub 2016 Apr 22.


Complete Genome Sequence of KPC-Producing Klebsiella pneumoniae Strain CAV1193.

Sheppard AE, Stoesser N, Sebra R, Kasarskis A, Deikus G, Anson L, Walker AS, Peto TE, Crook DW, Mathers AJ.

Genome Announc. 2016 Jan 28;4(1). pii: e01649-15. doi: 10.1128/genomeA.01649-15.


Colistin resistance gene mcr-1 and pHNSHP45 plasmid in human isolates of Escherichia coli and Klebsiella pneumoniae.

Stoesser N, Mathers AJ, Moore CE, Day NP, Crook DW.

Lancet Infect Dis. 2016 Mar;16(3):285-6. doi: 10.1016/S1473-3099(16)00010-4. Epub 2016 Jan 8. No abstract available.


Escherichia coli Pyruvate Dehydrogenase Complex Is an Important Component of CXCL10-Mediated Antimicrobial Activity.

Schutte KM, Fisher DJ, Burdick MD, Mehrad B, Mathers AJ, Mann BJ, Nakamoto RK, Hughes MA.

Infect Immun. 2015 Nov 9;84(1):320-8. doi: 10.1128/IAI.00552-15. Print 2016 Jan.


An Infectious Diseases Physician-Led Antimicrobial Stewardship Program at a Small Community Hospital Associated With Improved Susceptibility Patterns and Cost-Savings After the First Year.

Day SR, Smith D, Harris K, Cox HL, Mathers AJ.

Open Forum Infect Dis. 2015 May 12;2(2):ofv064. doi: 10.1093/ofid/ofv064. eCollection 2015 Apr.


The role of epidemic resistance plasmids and international high-risk clones in the spread of multidrug-resistant Enterobacteriaceae.

Mathers AJ, Peirano G, Pitout JD.

Clin Microbiol Rev. 2015 Jul;28(3):565-91. doi: 10.1128/CMR.00116-14. Review.


The limits of serial surveillance cultures in predicting clearance of colonization with carbapenemase-producing Enterobacteriaceae.

Lewis JD, Enfield KB, Mathers AJ, Giannetta ET, Sifri CD.

Infect Control Hosp Epidemiol. 2015 Jul;36(7):835-7. doi: 10.1017/ice.2015.57. Epub 2015 Mar 17.


Escherichia coli ST131: The quintessential example of an international multiresistant high-risk clone.

Mathers AJ, Peirano G, Pitout JD.

Adv Appl Microbiol. 2015;90:109-54. doi: 10.1016/bs.aambs.2014.09.002. Epub 2014 Nov 13. Review.


Klebsiella pneumoniae carbapenemase (KPC)-producing K. pneumoniae at a single institution: insights into endemicity from whole-genome sequencing.

Mathers AJ, Stoesser N, Sheppard AE, Pankhurst L, Giess A, Yeh AJ, Didelot X, Turner SD, Sebra R, Kasarskis A, Peto T, Crook D, Sifri CD.

Antimicrob Agents Chemother. 2015 Mar;59(3):1656-63. doi: 10.1128/AAC.04292-14. Epub 2015 Jan 5.


Control of simultaneous outbreaks of carbapenemase-producing enterobacteriaceae and extensively drug-resistant Acinetobacter baumannii infection in an intensive care unit using interventions promoted in the Centers for Disease Control and Prevention 2012 carbapenemase-resistant Enterobacteriaceae Toolkit.

Enfield KB, Huq NN, Gosseling MF, Low DJ, Hazen KC, Toney DM, Slitt G, Zapata HJ, Cox HL, Lewis JD, Kundzins JR, Mathers AJ, Sifri CD.

Infect Control Hosp Epidemiol. 2014 Jul;35(7):810-7. doi: 10.1086/676857. Epub 2014 May 15.


Clinical microbiology costs for methods of active surveillance for Klebsiella pneumoniae carbapenemase-producing Enterobacteriaceae.

Mathers AJ, Poulter M, Dirks D, Carroll J, Sifri CD, Hazen KC.

Infect Control Hosp Epidemiol. 2014 Apr;35(4):350-5. doi: 10.1086/675603.


Dissecting the evolutionary stealth of our flora against antibiotics.

Mathers AJ, Guerrant RL.

Trans R Soc Trop Med Hyg. 2014 Mar;108(3):121-2. doi: 10.1093/trstmh/tru002.


Development and validation of a multiplex PCR assay for identification of the epidemic ST-258/512 KPC-producing Klebsiella pneumoniae clone.

Adler A, Khabra E, Chmelnitsky I, Giakkoupi P, Vatopoulos A, Mathers AJ, Yeh AJ, Sifri CD, De Angelis G, Tacconelli E, Villegas MV, Quinn J, Carmeli Y.

Diagn Microbiol Infect Dis. 2014 Jan;78(1):12-5. doi: 10.1016/j.diagmicrobio.2013.10.003. Epub 2013 Oct 14.


Admission surveillance for carbapenamase-producing Enterobacteriaceae at a long-term acute care hospital.

Lewis JD, Bishop M, Heon B, Mathers AJ, Enfield KB, Sifri CD.

Infect Control Hosp Epidemiol. 2013 Aug;34(8):832-4. doi: 10.1086/671263. Epub 2013 Jun 27.


First clinical cases of OXA-48-producing carbapenem-resistant Klebsiella pneumoniae in the United States: the "menace" arrives in the new world.

Mathers AJ, Hazen KC, Carroll J, Yeh AJ, Cox HL, Bonomo RA, Sifri CD.

J Clin Microbiol. 2013 Feb;51(2):680-3. doi: 10.1128/JCM.02580-12. Epub 2012 Nov 21. Erratum in: J Clin Microbiol. 2013 Apr;51(4):1352.


Genotypic diversity of an emergent population of Borrelia burgdorferi at a coastal Maine island recently colonized by Ixodes scapularis.

MacQueen DD, Lubelczyk C, Elias SP, Cahill BK, Mathers AJ, Lacombe EH, Rand PW, Smith RP Jr.

Vector Borne Zoonotic Dis. 2012 Jun;12(6):456-61. doi: 10.1089/vbz.2011.0811. Epub 2012 Jan 4.


Molecular dissection of an outbreak of carbapenem-resistant enterobacteriaceae reveals Intergenus KPC carbapenemase transmission through a promiscuous plasmid.

Mathers AJ, Cox HL, Kitchel B, Bonatti H, Brassinga AK, Carroll J, Scheld WM, Hazen KC, Sifri CD.

mBio. 2011 Nov 1;2(6):e00204-11. doi: 10.1128/mBio.00204-11. Print 2011.

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