World's Best Scientists 2026 revealed!
Cliona O'Farrelly

Cliona O'Farrelly

D-Index & Metrics

Immunology

D-Index
82
Citations
23234
World Ranking
1511
National Ranking
5

Medicine

D-Index
83
Citations
23373
World Ranking
15694
National Ranking
43

Cliona O'Farrelly publication distribution in Immunology in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Immunology in 2026. The highlighted bar marks where Cliona O'Farrelly sits on this spectrum.

62–71 publications: 9 scientists 72–81 publications: 23 scientists 82–91 publications: 40 scientists 92–101 publications: 72 scientists 102–111 publications: 86 scientists 112–121 publications: 108 scientists 122–131 publications: 150 scientists 132–141 publications: 160 scientists 142–151 publications: 159 scientists 152–161 publications: 189 scientists 162–171 publications: 166 scientists 172–181 publications: 181 scientists 182–191 publications: 188 scientists 192–201 publications: 187 scientists 202–211 publications: 178 scientists 212–221 publications: 158 scientists 222–231 publications: 168 scientists 232–241 publications: 159 scientists 242–251 publications: 160 scientists 252–261 publications: 148 scientists 262–271 publications: 116 scientists 272–281 publications: 125 scientists 282–291 publications: 115 scientists 292–301 publications: 111 scientists 302–311 publications: 95 scientists 312–321 publications: 97 scientists 322–331 publications: 97 scientists 332–341 publications: 99 scientists 342–351 publications: 96 scientists 352–361 publications: 68 scientists 362–371 publications: 76 scientists 372–381 publications: 71 scientists 382–391 publications: 71 scientists 392–401 publications: 62 scientists 402–411 publications: 54 scientists 412–421 publications: 41 scientists 422–431 publications: 63 scientists 432–441 publications: 53 scientists 442–451 publications: 31 scientists 452–461 publications: 42 scientists 462–471 publications: 40 scientists 472–481 publications: 29 scientists 482–491 publications: 34 scientists 492–501 publications: 30 scientists 502–511 publications: 23 scientists 512–521 publications: 41 scientists 522–531 publications: 29 scientists 532–541 publications: 28 scientists 542–551 publications: 16 scientists 552–561 publications: 18 scientists 562–571 publications: 18 scientists 572–581 publications: 17 scientists 582–591 publications: 17 scientists 592–601 publications: 17 scientists 602–611 publications: 19 scientists 612–621 publications: 13 scientists 622–631 publications: 12 scientists 632–641 publications: 11 scientists 642–651 publications: 16 scientists 652–661 publications: 9 scientists 662–671 publications: 5 scientists 672–681 publications: 13 scientists 682–691 publications: 12 scientists 692–701 publications: 6 scientists 702–711 publications: 6 scientists 712–721 publications: 9 scientists 722–731 publications: 9 scientists 732–741 publications: 6 scientists 742–751 publications: 11 scientists 752–761 publications: 10 scientists 762–771 publications: 7 scientists 772–781 publications: 12 scientists 782–791 publications: 7 scientists 792–801 publications: 5 scientists 802–806 publications: 1 scientists 807+ publications: 100 scientists
62 publications 807+

This scientist: 370 publications — 77th percentile

77% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 807 publications or more.

Cliona O'Farrelly D-index placement in Immunology in 2026

The chart shows the D-index (discipline H-index) distribution of Immunology scientists ranked by Research.com in 2026. The highlighted bar marks where Cliona O'Farrelly sits on this spectrum.

40–41 D-Index: 28 scientists 42–43 D-Index: 91 scientists 44–45 D-Index: 157 scientists 46–47 D-Index: 192 scientists 48–49 D-Index: 175 scientists 50–51 D-Index: 188 scientists 52–53 D-Index: 177 scientists 54–55 D-Index: 155 scientists 56–57 D-Index: 194 scientists 58–59 D-Index: 201 scientists 60–61 D-Index: 197 scientists 62–63 D-Index: 201 scientists 64–65 D-Index: 173 scientists 66–67 D-Index: 167 scientists 68–69 D-Index: 172 scientists 70–71 D-Index: 199 scientists 72–73 D-Index: 184 scientists 74–75 D-Index: 133 scientists 76–77 D-Index: 162 scientists 78–79 D-Index: 127 scientists 80–81 D-Index: 121 scientists 82–83 D-Index: 125 scientists 84–85 D-Index: 121 scientists 86–87 D-Index: 102 scientists 88–89 D-Index: 96 scientists 90–91 D-Index: 75 scientists 92–93 D-Index: 72 scientists 94–95 D-Index: 74 scientists 96–97 D-Index: 66 scientists 98–99 D-Index: 68 scientists 100–101 D-Index: 49 scientists 102–103 D-Index: 60 scientists 104–105 D-Index: 54 scientists 106–107 D-Index: 36 scientists 108–109 D-Index: 23 scientists 110–111 D-Index: 52 scientists 112–113 D-Index: 41 scientists 114–115 D-Index: 34 scientists 116–117 D-Index: 25 scientists 118–119 D-Index: 28 scientists 120–121 D-Index: 11 scientists 122–123 D-Index: 20 scientists 124–125 D-Index: 27 scientists 126–127 D-Index: 19 scientists 128–129 D-Index: 20 scientists 130–131 D-Index: 16 scientists 132–133 D-Index: 17 scientists 134–135 D-Index: 14 scientists 136–137 D-Index: 15 scientists 138–139 D-Index: 9 scientists 140–141 D-Index: 11 scientists 142–143 D-Index: 9 scientists 144–145 D-Index: 9 scientists 146–147 D-Index: 7 scientists 148–149 D-Index: 7 scientists 150–151 D-Index: 7 scientists 152–153 D-Index: 5 scientists 154–155 D-Index: 8 scientists 156 D-Index: 6 scientists 157+ D-Index: 96 scientists
40 D-Index 157+

This scientist: 82 D-Index — 70th percentile

70% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 157 D-Index or more.

Overview

Cliona O'Farrelly is affiliated with Trinity College Dublin in Ireland and has an extensive research portfolio primarily in the fields of Medicine and Immunology and Microbiology. Their work includes significant contributions to the understanding of immune cell function, infectious diseases, and COVID-19-related clinical studies.

The main fields of study for O'Farrelly encompass Medicine with 125 publications and Immunology and Microbiology with 62 publications. Within these fields, their subfields of focus include Immunology, Infectious Diseases, Neurology, Genetics, and Epidemiology.

Research topics frequently addressed by O'Farrelly include:

  • Immune Cell Function and Interaction
  • Long-Term Effects of COVID-19
  • COVID-19 Clinical Research Studies
  • SARS-CoV-2 and COVID-19 Research
  • T-cell and B-cell Immunology
  • Reproductive System and Pregnancy
  • Interferon and Immune Responses

Their recent papers demonstrate a focus on COVID-19 and its aftereffects, with notable works such as:

  • "Persistent fatigue following SARS-CoV-2 infection is common and independent of severity of initial infection", 2020, PLoS ONE
  • "Human genetic and immunological determinants of critical COVID-19 pneumonia", 2022, Nature
  • "Persistent Poor Health after COVID-19 Is Not Associated with Respiratory Complications or Initial Disease Severity", 2021, Annals of the American Thoracic Society
  • "Prolonged elevation of D-dimer levels in convalescent COVID-19 patients is independent of the acute phase response", 2021, Journal of Thrombosis and Haemostasis
  • "Studying severe long COVID to understand post-infectious disorders beyond COVID-19", 2022, Nature Medicine

Frequent co-authors collaborating with O'Farrelly include:

  • Nollaig M. Bourke
  • Petter Brodin
  • Niall Conlon
  • Lluís Quintana-Murci
  • Darragh Duffy

The most common publication venues for O'Farrelly's work are:

  • bioRxiv (Cold Spring Harbor Laboratory)
  • Age and Ageing
  • Frontiers in Immunology
  • PLoS ONE
  • The Journal of Experimental Medicine

Best Publications

  • Liver immunology and its role in inflammation and homeostasis

    Mark W Robinson;Cathal Harmon;Cliona O’Farrelly

  • Persistent fatigue following SARS-CoV-2 infection is common and independent of severity of initial infection.

    Liam Townsend;Adam H. Dyer;Karen Jones;Jean Dunne

  • Metabolic reprogramming of natural killer cells in obesity limits antitumor responses

    Xavier Michelet;Xavier Michelet;Lydia Dyck;Andrew Hogan;Roisin M Loftus

  • Autoantibodies neutralizing type I IFNs are present in ~ 4% of uninfected individuals over 70 years old and account for ~ 20% of COVID-19 deaths.

    Paul Bastard;Adrian Gervais;Adrian Gervais;Tom Le Voyer;Tom Le Voyer;Jérémie Rosain;Jérémie Rosain

  • Human genetic and immunological determinants of critical COVID-19 pneumonia

    Unknown

  • CD39+Foxp3+ regulatory T Cells suppress pathogenic Th17 cells and are impaired in multiple sclerosis.

    Jean M. Fletcher;Roisin Lonergan;Lisa Costelloe;Katie Kinsella

  • Adipose Tissue Invariant NKT Cells Protect against Diet-Induced Obesity and Metabolic Disorder through Regulatory Cytokine Production

    Lydia Lynch;Lydia Lynch;Michael Nowak;Bindu Varghese;Justice Clark

  • Innate and adaptive lymphoid cells in the human liver

    Derek G. Doherty;Cliona O'Farrelly

  • Resident human hepatitis lymphocytes are phenotypically different from circulating lymphocytes

    Suzanne Norris;Clive Collins;Derek G. Doherty;Fiona Smith

  • The Human Liver Contains Multiple Populations of NK Cells, T Cells, and CD3+CD56+ Natural T Cells with Distinct Cytotoxic Activities and Th1, Th2, and Th0 Cytokine Secretion Patterns

    Derek G. Doherty;Suzanne Norris;Laura Madrigal-Estebas;Gerry McEntee

  • Clinical anxiety, cortisol and interleukin-6: evidence for specificity in emotion-biology relationships.

    Aoife O’Donovan;Brian M. Hughes;George M. Slavich;Lydia Lynch

  • Lactate-Mediated Acidification of Tumor Microenvironment Induces Apoptosis of Liver-Resident NK Cells in Colorectal Liver Metastasis

    Cathal Harmon;Mark W Robinson;Fiona Hand;Dalal Almuaili

  • Bioinformatic discovery and initial characterisation of nine novel antimicrobial peptide genes in the chicken

    David J. Lynn;Rowan Higgs;Susan Gaines;Joanna Tierney

  • Reoxygenation-specific activation of the antioxidant transcription factor Nrf2 mediates cytoprotective gene expression in ischemia-reperfusion injury

    Martin O. Leonard;Niamh E. Kieran;Katherine Howell;Melissa J. Burne

  • Invariant NKT cells and CD1d+ cells amass in human omentum and are depleted in patients with cancer and obesity

    Lydia Lynch;Donal O'Shea;Desmond C. Winter;Justin Geoghegan

  • Are Natural Killer Cells Protecting the Metabolically Healthy Obese Patient

    Lydia A. Lynch;Jean M. O'Connell;Anna K. Kwasnik;Thomas J. Cawood

  • Persistent Poor Health after COVID-19 Is Not Associated with Respiratory Complications or Initial Disease Severity.

    Liam Townsend;Joanne Dowds;Kate O'Brien;Grainne Sheill

  • Smoking and thyroid-associated ophthalmopathy: A novel explanation of the biological link.

    T. J. Cawood;P. Moriarty;C. O’Farrelly;D. O’Shea

  • Microanatomy of the liver immune system.

    Eszter Nemeth;Alan W. Baird;Cliona O’Farrelly

  • The Relationship of Omental and Subcutaneous Adipocyte Size to Metabolic Disease in Severe Obesity

    Jean O'Connell;Lydia Lynch;Tom J. Cawood;Anna Kwasnik

  • Toll-like receptor and antimicrobial peptide expression in the bovine endometrium

    Darren Davies;Kieran G Meade;Shan Herath;P David Eckersall

  • NKT Cells from Normal and Tumor-Bearing Human Livers Are Phenotypically and Functionally Distinct from Murine NKT Cells

    Tony Kenna;Lucy Golden Mason;Steven A. Porcelli;Yasuhiko Koezuka

Frequent Co-Authors

Derek G. Doherty
Derek G. Doherty Trinity College Dublin
Conleth Feighery
Conleth Feighery Trinity College Dublin
Dermot Kelleher
Dermot Kelleher University of British Columbia
Lucy Golden-Mason
Lucy Golden-Mason University of Southern California
Lydia Lynch
Lydia Lynch Brigham and Women's Hospital
Colm O'Morain
Colm O'Morain Trinity College Dublin
David E. MacHugh
David E. MacHugh University College Dublin
Daniel G. Bradley
Daniel G. Bradley Trinity College Dublin
Fergus Shanahan
Fergus Shanahan National University of Ireland
Aoife O'Donovan
Aoife O'Donovan University of California, San Francisco

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