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Microbiology
USA
2026

D-Index & Metrics

Microbiology

D-Index
119
Citations
55745
World Ranking
154
National Ranking
72

Chemistry

D-Index
104
Citations
35391
World Ranking
1076
National Ranking
430

Patrick J. Brennan 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 Patrick J. Brennan 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: 487 publications — 94th percentile

94% of scientists in this discipline score the same or lower.

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

Patrick J. Brennan 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 Patrick J. Brennan 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: 119 D-Index — 97th percentile

97% of scientists in this discipline score the same or lower.

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

Research.com Recognitions

  • 2026 - Research.com Microbiology in United States Leader Award
  • 2025 - Research.com Microbiology in United States Leader Award
  • 1983 - Fellow of the American Society of Mechanical Engineers

Overview

Patrick J. Brennan is affiliated with Colorado State University in the United States. Their research primarily spans the field of Medicine, with a focused involvement in various subfields including Emergency Medical Services, Infectious Diseases, Molecular Biology, Surgery, and Epidemiology.

The scientist's recent publications cover a range of topics related to healthcare, infectious diseases, and medical pathology. Notable papers include:

  • Locally Informed Simulation to Predict Hospital Capacity Needs During the COVID-19 Pandemic (2020) published in Annals of Internal Medicine
  • Characteristics, Outcomes, and Trends of Patients With COVID-19-Related Critical Illness at a Learning Health System in the United States (2021) published in Annals of Internal Medicine
  • The immunology of other mycobacteria: M. ulcerans, M. leprae (2020) published in Seminars in Immunopathology
  • Gastroblastoma with a novel EWSR1-CTBP1 fusion presenting in adolescence (2021) published in Genes Chromosomes and Cancer
  • YAP1-FAM118B Fusion Defines a Rare Subset of Childhood and Young Adulthood Meningiomas (2020) published in The American Journal of Surgical Pathology

Frequent coauthors in Patrick J. Brennan's body of work include:

  • Peter White
  • Richard K. Wilson
  • Kathleen M. Schieffer
  • Benjamin Kelly
  • Vincent Magrini

Common venues for publication are:

  • British journal of surgery
  • Annals of Internal Medicine
  • Frontiers in Cellular and Infection Microbiology
  • Seminars in Immunopathology
  • Genes Chromosomes and Cancer

Patrick J. Brennan's research covers key topics such as:

  • Global Health Workforce Issues
  • Diversity and Career in Medicine
  • Disaster Response and Management
  • Leprosy Research and Treatment
  • Pharmacological Effects of Natural Compounds
  • Patient Satisfaction in Healthcare
  • Healthcare Policy and Management

During their career, Patrick J. Brennan was awarded the title of Fellow of the American Society of Mechanical Engineers in 1983.

Best Publications

  • Infectious Diseases Society of America and the Society for Healthcare Epidemiology of America Guidelines for Developing an Institutional Program to Enhance Antimicrobial Stewardship

    Timothy H. Dellit;Robert C. Owens;John E. McGowan;Dale N. Gerding

  • The Envelope of Mycobacteria

    Patrick J. Brennan;Hiroshi Nikaido

  • Host defense mechanisms triggered by microbial lipoproteins through toll-like receptors.

    Hans D. Brightbill;Daniel H. Libraty;Stephan R. Krutzik;Ruey Bing Yang

  • Estimating the Proportion of Healthcare-Associated Infections That Are Reasonably Preventable and the Related Mortality and Costs

    Craig A. Umscheid;Matthew D. Mitchell;Jalpa A. Doshi;Rajender Agarwal

  • Structure, function, and biogenesis of the cell wall of Mycobacterium tuberculosis

    P.J Brennan

  • Role of the Major Antigen of Mycobacterium tuberculosis in Cell Wall Biogenesis

    John T. Belisle;Varalakshmi D. Vissa;Varalakshmi D. Vissa;Todd Sievert;Todd Sievert;Kuni Takayama;Kuni Takayama

  • Invariant natural killer T cells: an innate activation scheme linked to diverse effector functions

    Patrick J. Brennan;Manfred Brigl;Michael B. Brenner

  • Valacyclovir for the Prevention of Cytomegalovirus Disease after Renal Transplantation

    David Lowance;Hans H. Neumayer;Christophe M. Legendre;Jean Paul Squifflet

  • CD1-restricted T cell recognition of microbial lipoglycan antigens.

    P. A. Sieling;D. Chatterjee;S. A. Porcelli;T. I. Prigozy

  • The embAB genes of Mycobacterium avium encode an arabinosyl transferase involved in cell wall arabinan biosynthesis that is the target for the antimycobacterial drug ethambutol

    Aimee E. Belanger;Gurdyal S. Besra;Michael E. Ford;Katarina Mikusova

  • On the origin of leprosy

    Marc Monot;Nadine Honoré;Thierry Garnier;Romulo Araoz

  • A novel pathogenic taxon of the Mycobacterium tuberculosis complex, Canetti: characterization of an exceptional isolate from Africa.

    D. Van Soolingen;T. Hoogenboezem;P. E. W. De Haas;P. W. M. Hermans

  • Comparative genomic and phylogeographic analysis of Mycobacterium leprae

    Marc Monot;Nadine Honoré;Thierry Garnier;Nora Zidane

  • Activation and regulation of Toll-like receptors 2 and 1 in human leprosy.

    Stephan R. Krutzik;Maria Teresa Ochoa;Peter A. Sieling;Satoshi Uematsu

  • Structure and antigenicity of the phosphorylated lipopolysaccharide antigens from the leprosy and tubercle bacilli.

    S W Hunter;H Gaylord;P J Brennan

  • Local production of tumor necrosis factor and IFN-gamma in tuberculous pleuritis.

    P F Barnes;S J Fong;P J Brennan;P E Twomey

  • Biogenesis of the mycobacterial cell wall and the site of action of ethambutol.

    K Mikusová;R A Slayden;G S Besra;P J Brennan

  • Activation of the Pro-drug Ethionamide Is Regulated in Mycobacteria *

    Alain R. Baulard;Joanna C. Betts;Jean Engohang-Ndong;Selwyn Quan

  • Cytokine production induced by Mycobacterium tuberculosis lipoarabinomannan. Relationship to chemical structure.

    P F Barnes;D Chatterjee;J S Abrams;S Lu

  • Regulatory iNKT cells lack expression of the transcription factor PLZF and control the homeostasis of Treg cells and macrophages in adipose tissue

    Lydia Lynch;Xavier Michelet;Sai Zhang;Patrick J Brennan

  • Recognition of a peptide antigen by heat shock--reactive gamma delta T lymphocytes.

    Willi Born;Lisa Hall;Angela Dallas;Joel Boymel

Frequent Co-Authors

Delphi Chatterjee
Delphi Chatterjee Colorado State University
Gurdyal S. Besra
Gurdyal S. Besra University of Birmingham
Michael R. McNeil
Michael R. McNeil Colorado State University
Dean C. Crick
Dean C. Crick Colorado State University
John T. Belisle
John T. Belisle Colorado State University
Mary Jackson
Mary Jackson Colorado State University
Michael B. Brenner
Michael B. Brenner Harvard Medical School
Sang-Nae Cho
Sang-Nae Cho Yonsei University
Kay-Hooi Khoo
Kay-Hooi Khoo National Taiwan University
Stewart T. Cole
Stewart T. Cole Institut Pasteur

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