World's Best Scientists 2026 revealed!

D-Index & Metrics

Microbiology

D-Index
84
Citations
32209
World Ranking
906
National Ranking
23

Thomas V. Riley 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 V. Riley 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: 264 scientists 155–164 publications: 264 scientists 165–174 publications: 253 scientists 175–184 publications: 276 scientists 185–194 publications: 190 scientists 195–204 publications: 233 scientists 205–214 publications: 207 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: 447 publications — 93rd percentile

93% of scientists in this discipline score the same or lower.

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

Thomas V. Riley 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 V. Riley 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: 111 scientists 57 D-Index: 136 scientists 58 D-Index: 162 scientists 59 D-Index: 151 scientists 60 D-Index: 139 scientists 61 D-Index: 122 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: 93 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: 84 D-Index — 84th percentile

84% of scientists in this discipline score the same or lower.

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

Overview

Thomas V. Riley is affiliated with the University of Western Australia in Australia. Their research primarily focuses on medicine, with significant contributions in infectious diseases, epidemiology, surgery, critical care and intensive care medicine, and molecular biology.

The scientist's work extensively covers topics related to Clostridium difficile and Clostridium perfringens research, with additional focus areas including microscopic colitis, nosocomial infections in intensive care units, antimicrobial resistance in Staphylococcus, viral gastroenteritis research and epidemiology, Helicobacter pylori-related gastroenterology studies, and gut microbiota and health.

Recent publications by Thomas V. Riley include:

  • Major genetic discontinuity and novel toxigenic species in Clostridioides difficile taxonomy, 2021, eLife
  • Antimicrobial resistance in Clostridioides difficile, 2021, European Journal of Clinical Microbiology & Infectious Diseases
  • Antibiotics and healthcare facility-associated Clostridioides difficile infection: systematic review and meta-analysis 2020 update, 2021, Journal of Antimicrobial Chemotherapy
  • A species-wide genetic atlas of antimicrobial resistance in Clostridioides difficile, 2021, Microbial Genomics
  • Antimicrobial Susceptibilities of Clostridium difficile Isolates from 12 Asia-Pacific Countries in 2014 and 2015, 2020, Antimicrobial Agents and Chemotherapy

Thomas V. Riley frequently collaborates with a number of colleagues including Daniel R. Knight, Deirdre A. Collins, Papanin Putsathit, Korakrit Imwattana, and Su-Chen Lim.

The scientist publishes regularly in several academic venues, with notable publication counts in:

  • Anaerobe
  • bioRxiv (Cold Spring Harbor Laboratory)
  • Journal of Antimicrobial Chemotherapy
  • Microbial Genomics
  • Journal of Clinical Microbiology

Best Publications

  • Antimicrobial activity of essential oils and other plant extracts

    Kate Hammer;Christine Carson;Thomas Riley

  • Melaleuca alternifolia (Tea Tree) Oil: a Review of Antimicrobial and Other Medicinal Properties

    C.F. Carson;Kate Hammer;Thomas Riley

  • Mechanism of Action of Melaleuca alternifolia (Tea Tree) Oil on Staphylococcus aureus Determined by Time-Kill, Lysis, Leakage, and Salt Tolerance Assays and Electron Microscopy

    Christine F. Carson;Brian J. Mee;Thomas V. Riley

  • Antimicrobial activity of the major components of the essential oil of Melaleuca alternifolia

    C.F. Carson;Thomas Riley;Thomas Riley

  • Emergence and global spread of epidemic healthcare-associated Clostridium difficile.

    Miao He;Fabio Miyajima;Paul Roberts;Louise Ellison

  • Antibiotics and hospital-acquired Clostridium difficile infection: update of systematic review and meta-analysis

    Claudia Slimings;Thomas V. Riley

  • Antifungal activity of the components of Melaleuca alternifolia (tea tree) oil.

    Kate Hammer;Christine Carson;Thomas Riley

  • Terpinen-4-ol, the main component of the essential oil of Melaleuca alternifolia (tea tree oil), suppresses inflammatory mediator production by activated human monocytes.

    P.H. Hart;C. Brand;Christine Carson;Thomas Riley

  • Antimicrobial activity of commercial Olea europaea (olive) leaf extract

    Aurelia N. Sudjana;Carla D’Orazio;Vanessa Ryan;Nooshin Rasool

  • Tea tree oil as an alternative topical decolonization agent for methicillin-resistant Staphylococcus aureus

    M. Caelli;J. Porteous;C.F. Carson;R. Heller

  • Antifungal effects of Melaleuca alternifolia (tea tree) oil and its components on Candida albicans, Candida glabrata and Saccharomyces cerevisiae

    Kate Hammer;Christine Carson;Thomas Riley

  • Antibiotics and hospital-acquired Clostridium difficile-associated diarrhoea: a systematic review

    Claudia Thomas;Mark Stevenson;Thomas V. Riley

  • A review of the toxicity of Melaleuca alternifolia (tea tree) oil.

    Kate A. Hammer;Christine F. Carson;Tom V. Riley;Jesper Bo Nielsen

  • Erysipelothrix rhusiopathiae: bacteriology, epidemiology and clinical manifestations of an occupational pathogen

    C.J. Brooke;Thomas Riley

  • Susceptibility of methicillin-resistant Staphylococcus aureus to the essential oil of Melaleuca alternifolia

    C.F. Carson;B.D. Cookson;H.D. Farrelly;Thomas Riley

  • Community Strain of Methicillin-Resistant Staphylococcus aureus Involved in a Hospital Outbreak

    F.G. O'Brien;J.W. Pearman;M. Gracey;Thomas Riley

  • Clostridium difficile infection in the community: a zoonotic disease?

    M.P.M. Hensgens;E.C. Keessen;M.M. Squire;T.V. Riley

  • Diversity and Evolution in the Genome of Clostridium difficile

    Daniel R. Knight;Briony Elliott;Barbara J. Chang;Timothy T. Perkins

  • In-vitro activity of essential oils, in particular Melaleuca alternifolia (tea tree) oil and tea tree oil products, against Candida spp.

    Katherine A. Hammer;Christine F. Carson;Thomas V. Riley

  • Broth Micro-Dilution Method for Determining the Susceptibility of Escherichia Coli and Staphylococcus Aureus to the Essential Oil of Melaleuca Alternifolia (Tea Tree Oil)

    C.F. Carson;Kate Hammer;Thomas Riley

Frequent Co-Authors

David L. Paterson
David L. Paterson University of Queensland
Archie C. A. Clements
Archie C. A. Clements Queen's University Belfast
Laith Yakob
Laith Yakob London School of Hygiene & Tropical Medicine
Dena Lyras
Dena Lyras Monash University
Nicholas Graves
Nicholas Graves Queensland University of Technology
Derrick W. Crook
Derrick W. Crook University of Oxford
David W. Eyre
David W. Eyre University of Oxford
Peter M. Hawkey
Peter M. Hawkey University of Birmingham
Dale N. Gerding
Dale N. Gerding Veterans Health Administration
David J. Hampson
David J. Hampson Murdoch University

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