World's Best Scientists 2026 revealed!
Thomas R. Fritsche

Thomas R. Fritsche

D-Index & Metrics

Microbiology

D-Index
72
Citations
13883
World Ranking
1796
National Ranking
763

Thomas R. Fritsche publication distribution in Microbiology in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Microbiology in 2026. The highlighted bar marks where Thomas R. Fritsche sits on this spectrum.

55–64 publications: 8 scientists 65–74 publications: 29 scientists 75–84 publications: 55 scientists 85–94 publications: 112 scientists 95–104 publications: 137 scientists 105–114 publications: 190 scientists 115–124 publications: 235 scientists 125–134 publications: 234 scientists 135–144 publications: 288 scientists 145–154 publications: 265 scientists 155–164 publications: 264 scientists 165–174 publications: 253 scientists 175–184 publications: 276 scientists 185–194 publications: 190 scientists 195–204 publications: 234 scientists 205–214 publications: 208 scientists 215–224 publications: 198 scientists 225–234 publications: 155 scientists 235–244 publications: 161 scientists 245–254 publications: 160 scientists 255–264 publications: 146 scientists 265–274 publications: 139 scientists 275–284 publications: 148 scientists 285–294 publications: 115 scientists 295–304 publications: 96 scientists 305–314 publications: 88 scientists 315–324 publications: 106 scientists 325–334 publications: 65 scientists 335–344 publications: 76 scientists 345–354 publications: 64 scientists 355–364 publications: 62 scientists 365–374 publications: 65 scientists 375–384 publications: 61 scientists 385–394 publications: 34 scientists 395–404 publications: 44 scientists 405–414 publications: 36 scientists 415–424 publications: 35 scientists 425–434 publications: 29 scientists 435–444 publications: 33 scientists 445–454 publications: 34 scientists 455–464 publications: 25 scientists 465–474 publications: 26 scientists 475–484 publications: 20 scientists 485–494 publications: 19 scientists 495–504 publications: 16 scientists 505–514 publications: 17 scientists 515–524 publications: 23 scientists 525–534 publications: 14 scientists 535–544 publications: 14 scientists 545–554 publications: 18 scientists 555–564 publications: 12 scientists 565–574 publications: 7 scientists 575–584 publications: 9 scientists 585–594 publications: 9 scientists 595–604 publications: 9 scientists 605–614 publications: 7 scientists 615–624 publications: 9 scientists 625–634 publications: 7 scientists 635–644 publications: 4 scientists 645–654 publications: 5 scientists 655–664 publications: 6 scientists 665–674 publications: 7 scientists 675–678 publications: 3 scientists 679+ publications: 99 scientists
55 publications 679+

This scientist: 236 publications — 61st percentile

61% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 679 publications or more.

Thomas R. Fritsche D-index placement in Microbiology in 2026

The chart shows the D-index (discipline H-index) distribution of Microbiology scientists ranked by Research.com in 2026. The highlighted bar marks where Thomas R. Fritsche sits on this spectrum.

40 D-Index: 30 scientists 41 D-Index: 86 scientists 42 D-Index: 90 scientists 43 D-Index: 117 scientists 44 D-Index: 122 scientists 45 D-Index: 123 scientists 46 D-Index: 108 scientists 47 D-Index: 110 scientists 48 D-Index: 106 scientists 49 D-Index: 109 scientists 50 D-Index: 129 scientists 51 D-Index: 111 scientists 52 D-Index: 116 scientists 53 D-Index: 127 scientists 54 D-Index: 134 scientists 55 D-Index: 134 scientists 56 D-Index: 112 scientists 57 D-Index: 136 scientists 58 D-Index: 162 scientists 59 D-Index: 151 scientists 60 D-Index: 139 scientists 61 D-Index: 123 scientists 62 D-Index: 126 scientists 63 D-Index: 144 scientists 64 D-Index: 109 scientists 65 D-Index: 103 scientists 66 D-Index: 124 scientists 67 D-Index: 112 scientists 68 D-Index: 103 scientists 69 D-Index: 131 scientists 70 D-Index: 94 scientists 71 D-Index: 93 scientists 72 D-Index: 96 scientists 73 D-Index: 92 scientists 74 D-Index: 80 scientists 75 D-Index: 66 scientists 76 D-Index: 87 scientists 77 D-Index: 60 scientists 78 D-Index: 73 scientists 79 D-Index: 59 scientists 80 D-Index: 57 scientists 81 D-Index: 55 scientists 82 D-Index: 47 scientists 83 D-Index: 77 scientists 84 D-Index: 50 scientists 85 D-Index: 45 scientists 86 D-Index: 42 scientists 87 D-Index: 41 scientists 88 D-Index: 32 scientists 89 D-Index: 38 scientists 90 D-Index: 35 scientists 91 D-Index: 34 scientists 92 D-Index: 27 scientists 93 D-Index: 26 scientists 94 D-Index: 33 scientists 95 D-Index: 22 scientists 96 D-Index: 37 scientists 97 D-Index: 22 scientists 98 D-Index: 21 scientists 99 D-Index: 22 scientists 100 D-Index: 30 scientists 101 D-Index: 16 scientists 102 D-Index: 20 scientists 103 D-Index: 17 scientists 104 D-Index: 19 scientists 105 D-Index: 16 scientists 106 D-Index: 19 scientists 107 D-Index: 18 scientists 108 D-Index: 14 scientists 109 D-Index: 10 scientists 110 D-Index: 9 scientists 111 D-Index: 7 scientists 112 D-Index: 11 scientists 113 D-Index: 6 scientists 114 D-Index: 15 scientists 115 D-Index: 10 scientists 116 D-Index: 12 scientists 117 D-Index: 7 scientists 118 D-Index: 10 scientists 119 D-Index: 10 scientists 120 D-Index: 11 scientists 121 D-Index: 2 scientists 122 D-Index: 7 scientists 123 D-Index: 12 scientists 124 D-Index: 5 scientists 125 D-Index: 9 scientists 126 D-Index: 6 scientists 127+ D-Index: 95 scientists
40 D-Index 127+

This scientist: 72 D-Index — 69th percentile

69% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 127 D-Index or more.

Overview

Thomas R. Fritsche is affiliated with Marshfield Clinic in the United States. Their research primarily spans the fields of Medicine and Biochemistry, Genetics and Molecular Biology, with a focus on public health, epidemiology, molecular medicine, endocrinology, and applied microbiology and biotechnology.

The scientific work by Thomas R. Fritsche concentrates on several interrelated topics, including antibiotic resistance in bacteria, antibiotic use and resistance, bacterial identification and susceptibility testing, streptococcal infections and treatments, infective endocarditis diagnosis and management, enterobacteriaceae and cronobacter research, and neonatal and maternal infections.

Frequent coauthors collaborating with Thomas R. Fritsche include Jennifer K. Meece, Laurel Legenza, Matthew C. Hall, Brooke J. Olson, and Brooke J Olson.

The researcher has published multiple papers in notable venues such as Open Forum Infectious Diseases, Journal of Clinical Microbiology, Emerging Infectious Diseases, Scientific Reports, and the Ear Nose & Throat Journal.

Representative recent papers include:

  • Multicenter Clinical Evaluation of Modified Two-Tiered Testing Algorithms for Lyme Disease Using Zeus Scientific Commercial Assays, 2022, Journal of Clinical Microbiology
  • Multicenter Evaluation of the Novel ETEST Fosfomycin for Antimicrobial Susceptibility Testing of Enterobacterales, Enterococcus faecalis, and Staphylococcus Species, 2022, Journal of Clinical Microbiology
  • A geospatial approach to identify patterns of antibiotic susceptibility at a neighborhood level in Wisconsin, United States, 2023, Scientific Reports
  • Direct Tissue PCR and Genotyping for Species Identification in a Case of Laryngeal Blastomycosis, 2021, Ear Nose & Throat Journal
  • Clinical Laboratory Perspective on Streptococcus halichoeri, an Unusual Nonhemolytic, Lancefield Group B Streptococcus Causing Human Infections, 2021, Emerging Infectious Diseases

Best Publications

  • Contemporary causes of skin and soft tissue infections in North America, Latin America, and Europe: report from the SENTRY Antimicrobial Surveillance Program (1998-2004)

    Gary J. Moet;Ronald N. Jones;Douglas J. Biedenbach;Matthew G. Stilwell

  • Antimicrobial resistance and molecular epidemiology of vancomycin-resistant enterococci from North America and Europe: a report from the SENTRY antimicrobial surveillance program

    Lalitagauri M. Deshpande;Thomas R. Fritsche;Gary J. Moet;Douglas J. Biedenbach

  • Acute Uncomplicated Cystitis in an Era of Increasing Antibiotic Resistance: A Proposed Approach to Empirical Therapy

    Thomas M. Hooton;Richard Besser;Betsy Foxman;Thomas R. Fritsche

  • Tick-borne diseases in the United States.

    Spach Dh;Liles Wc;Campbell Gl;Quick Re

  • Assessment of pathogen occurrences and resistance profiles among infected patients in the intensive care unit: report from the SENTRY Antimicrobial Surveillance Program (North America, 2001).

    Jennifer M Streit;Ronald N Jones;Helio S Sader;Thomas R Fritsche

  • International Surveillance of Candida spp. and Aspergillus spp.: Report from the SENTRY Antimicrobial Surveillance Program (2003)

    Shawn A. Messer;Ronald N. Jones;Thomas R. Fritsche

  • Novel bacterial endosymbionts of Acanthamoeba spp. related to the Paramecium caudatum symbiont Caedibacter caryophilus

    Matthias Horn;Thomas R. Fritsche;Romesh K. Gautom;Karl-Heinz Schleifer

  • Neochlamydia hartmannellae gen. nov., sp. nov. (Parachlamydiaceae), an endoparasite of the amoeba Hartmannella vermiformis

    Matthias Horn;Michael Wagner;Karl-Dieter Müller;Ernst N. Schmid

  • Occurrence and Characterization of Carbapenemase-Producing Enterobacteriaceae: Report from the SENTRY Antimicrobial Surveillance Program (2000–2004)

    Lalitagauri M. Deshpande;Ronald N. Jones;Thomas R. Fritsche;Helio S. Sader

  • Antimicrobial Activities of Tigecycline and Other Broad-Spectrum Antimicrobials Tested against Serine Carbapenemase- and Metallo-β-Lactamase-Producing Enterobacteriaceae: Report from the SENTRY Antimicrobial Surveillance Program

    Mariana Castanheira;Hélio S. Sader;Lalitagauri M. Deshpande;Thomas R. Fritsche

  • Occurrence of bacterial endosymbionts in Acanthamoeba spp. isolated from corneal and environmental specimens and contact lenses.

    T. R. Fritsche;R. K. Gautom;Seyedreza Seyedirashti;D. L. Bergeron

  • Phylogenetic diversity among geographically dispersed Chlamydiales endosymbionts recovered from clinical and environmental isolates of Acanthamoeba spp.

    Thomas R. Fritsche;Matthias Horn;Michael Wagner;Russell P. Herwig

  • In Situ Detection of Novel Bacterial Endosymbionts of Acanthamoeba spp. Phylogenetically Related to Members of the Order Rickettsiales

    Thomas R. Fritsche;Matthias Horn;Seyedreza Seyedirashti;Romesh K. Gautom

  • Antimicrobial activity and spectrum of PPI-0903M (T-91825), a novel cephalosporin, tested against a worldwide collection of clinical strains.

    Helio S. Sader;Thomas R. Fritsche;Koné Kaniga;Yigong Ge

  • Worldwide Assessment of Dalbavancin Activity and Spectrum Against Over 6,000 Clinical Isolates

    Jennifer M Streit;Thomas R Fritsche;Helio S Sader;Ronald N Jones

  • Detection of Methyltransferases Conferring High-Level Resistance to Aminoglycosides in Enterobacteriaceae from Europe, North America, and Latin America

    Thomas R. Fritsche;Mariana Castanheira;George H. Miller;Ronald N. Jones

  • Pseudomembranous Colitis Caused by a Toxin A− B+ Strain of Clostridium difficile

    Ajit P. Limaye;David K. Turgeon;Brad T. Cookson;Thomas R. Fritsche

  • LEADER surveillance program results for 2006: an activity and spectrum analysis of linezolid using clinical isolates from the United States (50 medical centers).

    Ronald N. Jones;Thomas R. Fritsche;Helio S. Sader;James E. Ross

  • Transmission of Histoplasma capsulatum by organ transplantation.

    A P Limaye;P A Connolly;M Sagar;T R Fritsche

  • Antimicrobial activity of doripenem (S-4661): a global surveillance report (2003)

    T.R. Fritsche;M.G. Stilwell;R.N. Jones

Frequent Co-Authors

Ronald N. Jones
Ronald N. Jones JMI Laboratories
Helio S. Sader
Helio S. Sader JMI Laboratories
Paul R. Rhomberg
Paul R. Rhomberg University of Iowa
Ajit P. Limaye
Ajit P. Limaye University of Washington
Matthias Horn
Matthias Horn University of Vienna
Michael Wagner
Michael Wagner University of Vienna
Jennifer K. Meece
Jennifer K. Meece Marshfield Clinic
Brad T. Cookson
Brad T. Cookson University of Washington

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