Mark A. Fisher
No Rating Available
(Learn About Our Rating System)

Mark A. Fisher, PhD

Languages spoken: English

Dr. Fisher is the medical director of the Bacteriology and Special Microbiology laboratories at ARUP and a Professor of Pathology at the University of Utah School of Medicine. He is board certified in medical microbiology, and his research interests include microbial pathogenesis, novel antimicrobials, and transmission of vector borne pathogens.

Specialties

  • Clinical Microbiology

Board Certification

American Board of Medical Microbiology

Dr. Fisher is the medical director of the Bacteriology and Special Microbiology laboratories at ARUP and a Professor of Pathology at the University of Utah School of Medicine. He is board certified in medical microbiology, and his research interests include microbial pathogenesis, novel antimicrobials, and transmission of vector borne pathogens.

Board Certification and Academic Information

Academic Departments Pathology -Professor (Clinical)
Board Certification
American Board of Medical Microbiology

Education history

Undergraduate Pharmacy - Boise State University Pre Pharmacy
Undergraduate Microbiology, High Honors - Idaho State University B.S.
Graduate Training Microbiology - Idaho State University M.S.
Doctoral Training Microbiology and Molecular Genetics - Emory University Ph.D.
Postdoctoral Fellowship Microbial Genetics and Pathogenesis - Rocky Mountain Laboratories. Laboratory of Zoonotic Pathogens, NIAID, NIH Postdoctoral Fellow
Fellowship Medical Microbiology, ABMM - University of Utah School of Medicine, Department of Pathology Clinical Fellow

Selected Publications

Journal Article

  1. Fabre V, Hsu Y-J, Carroll KC, Milstone AM, Salinas AB, Abbo LM, Bower C, Berry J, Boyd S, Degnan KO, Dhaubhadel P, Diekema DJ, Dress M, Feeser B, Fisher M, Flynn C, Ford BA, Gettler EB, Glasser LJ, Howard-Anderson J, Johnson JK, Karaba SM, Kim JJ, Kubischta A, Landrum BM, Martinez M, Mathers AJ, Mermel L, Moehring RW, O'Horo JC, Pepe DE, Qasba SS, Rittmann B, Robinson ED, Rodríguez-Nava G, Rosa R, Ryder JH, Salinas JL, Shah A, Schrank GM, Shelly M, Spivak ES, Stewart KO, Talbot TR, Van Schooneveld TC, Wasylyshyn A, Gadala A, Virk Z, Cosgrove S (2025). Multicenter evaluation of blood culture contamination and blood cultures practices in US acute care hospitals: time for standardization. Journal of clinical microbiology, 63(8), e0053025.
  2. Simner PJ, Harris H, Jacobs E, Stambaugh H, Bhalodi A, Fisher M, Tekle T, Lu J, Humphries (2025). Establishing Clinical and Laboratory Standards Institute M45 antimicrobial susceptibility testing methods and breakpoints for Pseudomonas other than Pseudomonas aeruginosa. Journal of clinical microbiology, 63(8), e0036825.
  3. Buyukyanbolu E, Argotsinger J, Beck ET, Chamberland RR, Clark AE, Daniels AR, Liesman R, Fisher M, Gialanella P, Hand J, Harrington AT, Humphries RM, Huse H, Hamilton-Seth R, Hankins JD, Kufel WD, Riddell SW, Marino J, Westblade LF, Mochon AB, Narayanan N, Kirn TJ, Pierce VM, Potula R, Tekle T, Simner PJ, Tibbetts RJ, Vu C, Abbo LM, Martinez O, Dumm RE, Nicolau DP, Asempa TE, Acinetobacter baumannii Complex National Biorepository (ACNBio) Study Grou (2025). Activity of ampicillin-sulbactam, sulbactam-durlobactam, and comparators against Acinetobacter baumannii-calcoaceticus complex strains isolated from respiratory and bloodstream sources: results from ACNBio study. Antimicrobial agents and chemotherapy, 69(8), e0037925.
  4. Maynard R, Manuel C, Simpkins S, Haro M, Ledeboer N, Simner PJ, Fisher M, Humphries (2025). Development of disk diffusion susceptibility test methods for Aerococcus spp. and updates to Clinical and Laboratory Standards Institute MIC breakpoints. Journal of clinical microbiology, 63(6), e0011525.
  5. Zeng X, Lloyd KM, Hamdy RF, Shapiro CA, Fisher MA, Lin J, Liu B (2025). Identification and characterization of an invasive, hyper-aerotolerant Campylobacter jejuni strain causing bacteremia in a pediatric leukemia patient. ASM case reports, 1(3),
  6. Fabre V, Hsu YJ, Carroll KC, Salinas AB, Gadala A, Bower C, Boyd S, Degnan KO, Dhaubhadel P, Diekema DJ, Drees M, Feeser B, Fisher MA, Flynn C, Ford B, Gettler EB, Glaser LJ, Howard-Anderson J, Johnson JK, Kim JJ, Martinez M, Mathers AJ, Mermel LA, Moehring RW, Nelson GE, O'Horo JC, Pepe DE, Robinson ED, Rodríguez-Nava G, Ryder JH, Salinas JL, Schrank GM, Shah A, Shelly M, Spivak ES, Stewart KO, Talbot TR, Van Schooneveld TC, Wasylyshyn A, Cosgrove SE, Centers for Disease Control and Prevention (CDC) Prevention Epicenters Progra (2025). Blood Culture Use in Medical and Surgical Intensive Care Units and Wards. JAMA network open, 8(1), e2454738.
  7. Andrews SR, Timbrook TT, Fisher MA, Tritle B (2024). Comparative analysis of a rapid diagnostic test and scoring tools for ESBL detection in Enterobacterales bloodstream infections for optimizing antimicrobial therapy. Microbiology spectrum, 12(1), e0313123.
  8. Pham J, Benefield RJ, Baker N, Lindblom S, Canfield N, Gomez CA, Fisher (2024). In vitro activity of omadacycline against clinical isolates of Nocardia. Antimicrobial agents and chemotherapy, 68(5), e0168623.
  9. Rubio J, Yan J, Miller S, Cheng J, Li R, Builta Z, Aoyagi K, Fisher M, She R, Spellberg B, Luna (2024). Polymyxins retain in vitro activity and in vivo efficacy against "resistant" Acinetobacter baumannii strains when tested in physiological conditions. Antimicrobial agents and chemotherapy, 68(10), e0072524.
  10. Walker BS, Schmidt RL, Moore RA, White SK, Fisher MA, Metcalf R (2023). Bacterial culture time to detection in platelet components: An evidence synthesis and estimation of detection failures. Transfusion, 63(1), 182-192.
  11. Lim AL, Miller BW, Lin Z, Fisher MA, Barrows LR, Haygood MG, Schmidt E (2023). Resistance mechanisms for Gram-negative bacteria-specific lipopeptides, turnercyclamycins, differ from that of colistin. Microbiology spectrum, 11(6), e0230623.
  12. Brown DG, Wahlig TA, Ma A, Certain LK, Chalmers PN, Fisher MA, Leung D (2023). Genomic Characterization of 2 Cutibacterium acnes Isolates from a Surgical Site Infection Reveals Large Genomic Inversion. Pathogens & immunity, 8(1), 64-76.
  13. Aoyagi KL, Mathew B, Fisher M (2023). Enterobacterial common antigen biosynthesis in Yersinia pestis is tied to antimicrobial peptide resistance. bioRxiv, 08.26.554945,
  14. Mathew B, Aoyagi KL, Fisher M (2023). Antibacterial activity of Xenopsylla cheopis attacins against Yersinia pestis. bioRxiv, 08.26.554949,
  15. Corean J, White SK, Schmidt RL, Walker BS, Fisher MA, Metcalf R (2021). Platelet Component False Positive Detection Rate in Aerobic and Anaerobic Primary Culture: A Systematic Review and Meta-Analysis. Transfusion medicine reviews, 35(3), 44-52.
  16. Liu BM, Carlisle CP, Fisher MA, Shakir S (2021). The Brief Case: Capnocytophaga sputigena Bacteremia in a 94-Year-Old Male with Type 2 Diabetes Mellitus, Pancytopenia, and Bronchopneumonia. Journal of clinical microbiology, 59(7), e0247220.
  17. Corean J, White SK, Schmidt RL, Walker BS, Fisher MA, Metcalf R (2021). The incremental benefit of anaerobic culture for controlling bacterial risk in platelets: a systematic review and meta-analysis. Vox sanguinis, 116(4), 397-404.
  18. Shakir SM, Gill R, Salberg J, Slechta ES, Feldman M, Fritsche T, Clarridge J, Sharp SE, Fisher M (2021). Clinical Laboratory Perspective on Streptococcus halichoeri, an Unusual Nonhemolytic, Lancefield Group B Streptococcus Causing Human Infections. Emerging infectious diseases, 27(5), 1309-1316.
  19. Miller BW, Lim AL, Lin Z, Bailey J, Aoyagi KL, Fisher MA, Barrows LR, Manoil C, Schmidt EW, Haygood M (2021). Shipworm symbiosis ecology-guided discovery of an antibiotic that kills colistin-resistant Acinetobacter. Cell chemical biology, 28, 1628-1637.e4.
  20. Liu BM, Beck EM, Fisher M (2021). The Brief Case: Ventilator-Associated Corynebacterium accolens Pneumonia in a Patient with Respiratory Failure Due to COVID-19. Journal of clinical microbiology, 59(9), e0013721.
  21. Mathew B, Aoyagi KL, Fisher M (2021). Yersinia pestis Lipopolysaccharide Remodeling Confers Resistance to a Xenopsylla cheopis Cecropin. **Included in the Special Issue "Antibiotic Alternatives."**. ACS infectious diseases, 7(8), 2536-2545.
  22. Walker BS, Schmidt RL, Fisher MA, White SK, Blaylock RC, Metcalf R (2020). The comparative safety of bacterial risk control strategies for platelet components: a simulation study. Transfusion, 60(8), 1723-1731.
  23. Rossi A, Fisher M (2020). Characterization of six clinical isolates of Chimaeribacter gen. nov., a novel genus related to the Yersiniaceae family and the three species Chimaeribacter arupi sp. nov., Chimaeribacter coloradensis sp. nov, and Chimaeribacter californicus sp. nov. International journal of systematic and evolutionary microbiology, 70(4), 2703-2712.
  24. Peterson JA, Fisher MA, Lacy M (2020). Bordetella holmesii Bacteremia and Cellulitis in an Immunocompetent Patient. Infectious diseases in clinical practice (Baltimore, Md.), 28(5), 308-310.
  25. Langelier C, Graves M, Kalantar K, Caldera S, Durrant R, Fisher MA, Backman R, Tanner W, DeRisi JL, Leung D (2019). Microbiome and Antimicrobial Resistance Gene Dynamics in International Travelers. Emerging infectious diseases, 25(7), 1380-1383.
  26. Forde BM, Roberts LW, Phan MD, Peters KM, Fleming BA, Russell CW, Lenherr SM, Myers JB, Barker AP, Fisher MA, Chong TM, Yin WF, Chan KG, Schembri MA, Mulvey MA, Beatson S (2019). Population dynamics of an Escherichia coli ST131 lineage during recurrent urinary tract infection. Nature communications, 10(1), 3643.
  27. Lacy MD and Fisher M (2019). Sepsis, Helicoid Bacteremia, and Pneumatosis Intestinalis. Infectious diseases in clinical practice (Baltimore, Md.), 27(5), 292-294.
  28. Tanner WD, VanDerslice JA, Goel RK, Leecaster MK, Fisher MA, Olstadt J, Gurley CM, Morris AG, Seely KA, Chapman L, Korando M, Shabazz KA, Stadsholt A, VanDeVelde J, Braun-Howland E, Minihane C, Higgins PJ, Deras M, Jaber O, Jette D, Gundlapalli A (2019). Multi-state study of Enterobacteriaceae harboring extended-spectrum beta-lactamase and carbapenemase genes in U.S. drinking water. Scientific reports, 9(1), 3938.
  29. Prasidthrathsint K, Fisher M (2017). Antimicrobial Susceptibility Patterns among a Large, Nationwide Cohort of Abiotrophia and Granulicatella Clinical Isolates. Journal of clinical microbiology, 55(4), 1025-1031.
  30. Shakir SM, Powers-Fletcher MV, Slechta ES, Fisher M (2017). Helicobacter canis bacteraemia and cellulitis in a patient with end-stage renal disease. JMM case reports, 4(11), e005126.
  31. Summers SJ, Patel DP, Hamilton BD, Presson AP, Fisher MA, Lowrance WT, Southwick A (2015). An antimicrobial prophylaxis protocol using rectal swab cultures for transrectal prostate biopsy. World journal of urology, 33(12), 2001-7.
  32. Aoyagi KL, Brooks BD, Bearden SW, Montenieri JA, Gage KL, Fisher M (2015). LPS modification promotes maintenance of Yersinia pestis in fleas. Microbiology (Reading, England), 161(Pt 3), 628-38.
  33. Khot PD, Bird BA, Durrant RJ, Fisher M (2015). Identification of Nocardia Species by Matrix-Assisted Laser Desorption Ionization-Time of Flight Mass Spectrometry. Journal of clinical microbiology, 53(10), 3366-9.
  34. de Dios A, Jacob S, Tayal A, Fisher MA, Dingle TC, Hamula C (2015). First Report of Wohlfahrtiimonas chitiniclastica Isolation from a Patient with Cellulitis in the United States. Journal of clinical microbiology, 53(12), 3942-4.
  35. Chari A, Oakeson KF, Enomoto S, Jackson DG, Fisher MA, Dale (2015). Phenotypic characterization of Sodalis praecaptivus sp. nov., a close non-insect-associated member of the Sodalis-allied lineage of insect endosymbionts. International journal of systematic and evolutionary microbiology, 65(Pt 5), 1400-1405.
  36. Pusch T, Fisher MA, Gander R (2015). Cardiobacterium valvarum, an Emerging New HACEK Organism, as the Causative Agent of Infective Endocarditis: Case Report and Review of the Literature. Clinical microbiology newsletter, 37(16), 127-32.
  37. Schlaberg R, Fisher MA, Hanson K (2014). Susceptibility profiles of Nocardia isolates based on current taxonomy. Antimicrobial agents and chemotherapy, 58(2), 795-800.
  38. Schlaberg R, Fisher MA, Hanson K (2013). Susceptibility Profiles of Nocardia Isolates Based on Current Taxonomy. Antimicrobial agents and chemotherapy, 58(2), 795-800.
  39. Couturier BA, Couturier MR, Kalp KJ, Fisher M (2013). Detection of non-jejuni and -coli Campylobacter Species from Stool Specimens with an Immunochromatographic Antigen Detection Assay. Journal of clinical microbiology, 51(6), 1935-7.
  40. Khot PD, Fisher M (2013). Novel Approach for Differentiating Shigella Species and Escherichia coli by Matrix-Assisted Laser Desorption Ionization'Time of Flight Mass Spectrometry. Journal of clinical microbiology, 51(11), 3711-6.
  41. Wolfgang WJ, Passaretti TV, Jose R, Cole J, Coorevits A, Carpenter AN, Jose S, Van Landschoot A, Izard J, Kohlerschmidt DJ, Vandamme P, Dewhirst FE, Fisher MA, Musser K (2013). Neisseria oralis sp. nov., isolated from healthy gingival plaque and clinical samples. International journal of systematic and evolutionary microbiology, 63(Pt 4), 1323-1328.
  42. Brooks AE, Brooks BD, Davidoff SN, Hogrebe PC, Fisher MA, Grainger D (2013). Polymer-controlled release of tobramycin from bone graft void filler. Drug delivery and translational research, 3(6), 518-30.
  43. Khot PD, Fisher M (2013). Novel approach for differentiating Shigella species and Escherichia coli by matrix-assisted laser desorption ionization-time of flight mass spectrometry. Journal of clinical microbiology, 51(11), 3711-6.
  44. Couturier BA, Couturier MR, Kalp KJ, Fisher M (2013). Detection of non-jejuni and -coli Campylobacter species from stool specimens with an immunochromatographic antigen detection assay. Journal of clinical microbiology, 51(6), 1935-7.
  45. Blaschke AJ, Heyrend C, Byington CL, Fisher MA, Barker E, Garrone NF, Thatcher SA, Pavia AT, Barney T, Alger GD, Daly JA, Ririe KM, Ota I, Poritz M (2012). Rapid identification of pathogens from positive blood cultures by multiplex polymerase chain reaction using the FilmArray system. Diagnostic microbiology and infectious disease, 74(4), 349-55.
  46. Khot PD, Couturier MR, Wilson A, Croft A, Fisher M (2012). Optimization of MALDI-TOF Mass Spectrometry Analysis for Bacterial Identification. Journal of clinical microbiology, 50(12), 3845-52.
  47. Stallworth C, Steed L, Fisher MA, Nolte F (2012). A Case of Legionnaires' Disease Caused by Legionella londiniensis. Journal of clinical microbiology, 50(12), 4178-9.
  48. Barker AP, Simmon KE, Cohen S, Slechta ES, Fisher MA, Schlaberg (2012). Isolation and identification of Kroppenstedtia eburnea isolates from multiple patient samples. Journal of clinical microbiology, 50(10), 3391-4.
  49. Schlaberg R, Simmon KE, Fisher M (2012). A systematic approach for discovering novel, clinically relevant bacteria. Emerging infectious diseases, 18(3), 422-30.
  50. Clayton AL, Oakeson KF, Gutin M, Pontes A, Dunn DM, von Niederhausern AC, Weiss RB, Fisher MA, and Dale (2012). A Novel Human-Infection Derived Bacterium Provides Insights into the Evolutionary Origins of Mutualistic Insect-Bacterial Symbioses. **Recommended article, Faculty of 1000, Feb, 2013**. PLoS genetics, 8(11), e1002990.
  51. Stallworth C, Steed L, Fisher MA, Nolte F (2012). Legionnaires' disease caused by Legionella londiniensis. Journal of clinical microbiology, 50(12), 4178-9.
  52. Khot PD, Couturier MR, Wilson A, Croft A, Fisher M (2012). Optimization of matrix-assisted laser desorption ionization-time of flight mass spectrometry analysis for bacterial identification. Journal of clinical microbiology, 50(12), 3845-52.
  53. Couturier MR, Slechta ES, Goulston C, Fisher MA, Hanson K (2012). Leptotrichia bacteremia in patients receiving high-dose chemotherapy. Journal of clinical microbiology, 50(4), 1228-32.
  54. Couturier MR, Mehinovic E, Croft AC, Fisher M (2011). Identification of HACEK clinical isolates by matrix-assisted laser desorption ionization-time of flight mass spectrometry. Journal of clinical microbiology, 49(3), 1104-6.
  55. Kallstrom G, Chang T, Albertson M, Morilla D, Fisher MA, Eberly (2011). Recovery of a catalase-negative Staphylococcus epidermidis strain in blood and urine cultures from a patient with pyelonephritis. Journal of clinical microbiology, 49(11), 4018-9.
  56. Simmon KE, Fang DC, Tesic V, Khot PD, Giangeruso E, Bolesta ES, Wagner-Reiss KM, Fisher MA, Petti CA, Han XY, She R (2011). Isolation and characterization of "Pseudomonas andersonii" from four cases of pulmonary granulomas and emended species description. Journal of clinical microbiology, 49(4), 1518-23.
  57. Iroh Tam PY, Fisher MA, Miller N (2010). Corynebacterium falsenii bacteremia occurring in an infant on vancomycin therapy. Journal of clinical microbiology, 48(9), 3440-2.
  58. Fisher MA, Stamper PD, Hujer KM, Love Z, Croft A, Cohen S, Bonomo RA, Carroll KC, Petti C (2009). Performance of the Phoenix bacterial identification system compared with disc diffusion methods for identifying extended-spectrum beta-lactamase, AmpC and KPC producers. Journal of medical microbiology, 58(Pt 6), 774-778.
  59. Fisher MA, Grimm D, Henion AK, Elias AF, Stewart PE, Rosa PA, Gherardini F (2005). From the cover: Borrelia burgdorferi σ54 is Required for Mammalian Infection and Vector Transmission but not for Tick Colonization. **Commentary on p. 4933-4**. Proceedings of the National Academy of Sciences of the United States of America, 102(14), 5162-7.

Book

  1. Alby K, Karissa Culbreath K, Babady E, Baker N, Sarah Becket S, Bryant K, Fisher MA, Giglio S,Hellyer T,Long SW, McElvania E, Ogunkola S, Sharp (2025). CLSI M67 - Verification of Laboratory Automation in Microbiology.

Book Chapter

  1. She R, Fisher MA, Kozyreva VK, Yang (2023). Sequence-Based Identification and Typing.
  2. Fisher MA, Powers-Fletcher (2022). MALDI-TOF for Bacterial and Yeast Identification.
  3. Fisher MA, Shakir SM, Lopansri B (2022). Molecular Methods for Epidemiological Typing of Microorganisms.
  4. Fisher M (2017). Differentiation of closely related organisms using MALDI-TOF MS. 147-165.
  5. Lopansri B, Fisher M (2016). Molecular Methods for Epidemiologic Typing of Microorganisms. 3, 12.4.2.1-12.4.2.20.

Letter

  1. Webb BJ, Fisher MA, Tinker (2025). Re: "HANCEK" infective endocarditis: a case for including Neisseria elongata in the HACEK group. Clinical microbiology and infection, 31(4), 651-653.
  2. Babady NE, Bourassa L, Burnham CD, Fisher M, McElvania E, Polage CR, Ribes (2021). Multicenter Evaluation of Processing and Analysis of College of American Pathologists (CAP) Proficiency Testing Samples by Laboratory Automation. Journal of clinical microbiology, 59(5), e03233-20.
  3. Tritle BJ, Timbrook TT, Fisher MA, Spivak E (2020). Penicillin as a Potential Agent for Dual ß-Lactam Therapy for Enterococcal Endocarditis. Clinical infectious diseases, 70(6), 1263-1264.
  4. Bagdure SR, Fisher MA, Ryan ME, Khasawneh F (2012). Rhodococcus erythropolis encephalitis in patient receiving rituximab. Emerging infectious diseases, 18(8), 1377-9.

Abstract

  1. Liu BM, Simmon K, Fisher M (2021). Phenotypic and Genomic Analysis of Novel, Fastidious, Gram-negative Bacilli Isolated from Clinical Wound Specimens. 8(Sup 1), S424-S424.

Video/Film/CD/Web/Podcast

  1. Milner D, Swails K, Buss S, Culbreath K, Fisher MA, McElvania (2021). Guest Panelist for the American Society for Clinical Pathology In The Lab podcast "Consolidation and Total Laboratory Automation." Downloaded >1350 times from ≥52 countries and >1850 CE credits awarded in the first 6 months. Oct. 12, 2021.
  2. Fisher M (2021). ASM Clinical Microbiology Virtual Journal Club presentation of "Evaluation of the WASPLab segregation software to automatically analyze urine cultures using routine blood and MacConkey agars." ** #3 most liked session in 2021. ** Feb 9, 2021.
  3. Fisher M (2019). Rapid Antimicrobial Susceptibility Testing. ≥6423 viewers, 3963 CE credits awarded in 2 yrs. ** #4 most liked (#2 among those given by an ARUP Medical Director) ARUP Institute for Learning Webinar, FY2020 **. Dec 10, 2019.
  4. Khot PD, Fisher M (2011). Bacterial Identification by Mass Spectrometry. ARUP Institute For Learning Webinar. ≥1071 views, ≥448 CE credits awarded. June 29, 2011.