World's Best Scientists 2026 revealed!

D-Index & Metrics

Immunology

D-Index
99
Citations
44458
World Ranking
740
National Ranking
421

Medicine

D-Index
99
Citations
44509
World Ranking
8476
National Ranking
4377

George Hajishengallis 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 George Hajishengallis 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: 280 publications — 59th percentile

59% of scientists in this discipline score the same or lower.

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

George Hajishengallis 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 George Hajishengallis 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: 99 D-Index — 85th percentile

85% of scientists in this discipline score the same or lower.

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

Overview

George Hajishengallis is affiliated with the University of Pennsylvania in the United States. Their research primarily spans the fields of Immunology and Microbiology, with a significant volume of work also contributing to Medicine. The scientist's investigations focus on several subfields including Immunology, Periodontics, Molecular Biology, Genetics, and Physiology.

The main research topics covered by George Hajishengallis include:

  • Oral microbiology and periodontitis research
  • Immune responses and vaccinations
  • Immune response and inflammation
  • Immune cells in cancer
  • Oral health pathology and treatment
  • Complement system in diseases
  • Immunodeficiency and autoimmune disorders

Among recent scientific contributions, notable papers authored by George Hajishengallis include:

  • Local and systemic mechanisms linking periodontal disease and inflammatory comorbidities, 2021, Nature Reviews. Immunology
  • Current understanding of periodontal disease pathogenesis and targets for host-modulation therapy, 2020, Periodontology 2000
  • Interconnection of periodontal disease and comorbidities: Evidence, mechanisms, and implications, 2022, Periodontology 2000

George Hajishengallis has also coauthored with several researchers repeatedly, including:

  • Triantafyllos Chavakis
  • Xiaofei Li
  • Tetsuhiro Kajikawa
  • Kyoung-Jin Chung
  • Niki M. Moutsopoulos

The venues where George Hajishengallis has frequently published work include:

  • Periodontology 2000
  • The Journal of Immunology
  • Cell
  • Frontiers in Immunology
  • Journal of Clinical Investigation

This profile reflects a body of research that combines fundamental immunological mechanisms with clinical implications in oral health and systemic inflammatory conditions. The scientist's work integrates molecular biology, pathology, and immune system regulation, addressing both local oral diseases and broader immunological comorbidities.

Best Publications

  • Complement: a key system for immune surveillance and homeostasis

    Daniel Ricklin;George Hajishengallis;Kun Yang;John D Lambris

  • Periodontitis: from microbial immune subversion to systemic inflammation

    George Hajishengallis

  • The oral microbiota: dynamic communities and host interactions.

    Richard J. Lamont;Hyun Koo;George Hajishengallis

  • The keystone-pathogen hypothesis

    George Hajishengallis;Richard P. Darveau;Michael A. Curtis

  • Local and systemic mechanisms linking periodontal disease and inflammatory comorbidities

    George Hajishengallis;Triantafyllos Chavakis

  • Beyond the red complex and into more complexity: the polymicrobial synergy and dysbiosis (PSD) model of periodontal disease etiology.

    G. Hajishengallis;R.J. Lamont

  • Low-Abundance Biofilm Species Orchestrates Inflammatory Periodontal Disease through the Commensal Microbiota and Complement

    George Hajishengallis;Shuang Liang;Mark A. Payne;Ahmed Hashim

  • Immunomicrobial pathogenesis of periodontitis: keystones, pathobionts, and host response.

    George Hajishengallis

  • Modulation of Myelopoiesis Progenitors Is an Integral Component of Trained Immunity

    Ioannis Mitroulis;Klara Ruppova;Baomei Wang;Lan Sun Chen

  • TLR-signaling Networks An Integration of Adaptor Molecules, Kinases, and Cross-talk

    Jonathan Brown;Huizhi Wang;George N. Hajishengallis;Michael Martin

  • Polymicrobial synergy and dysbiosis in inflammatory disease

    Richard J. Lamont;George Hajishengallis

  • Innate Immune Training of Granulopoiesis Promotes Anti-tumor Activity.

    Lydia Kalafati;Lydia Kalafati;Ioannis Kourtzelis;Ioannis Kourtzelis;Ioannis Kourtzelis;Jonas Schulte-Schrepping;Xiaofei Li

  • Porphyromonas gingivalis as a Potential Community Activist for Disease

    R.P. Darveau;G. Hajishengallis;M.A. Curtis

  • Optimization of the ligature-induced periodontitis model in mice.

    Toshiharu Abe;George Hajishengallis

  • The use of rodent models to investigate host–bacteria interactions related to periodontal diseases

    Dana T. Graves;Daniel Fine;Yen-Tung A. Teng;Thomas E. Van Dyke

  • The leukocyte integrin antagonist Del-1 inhibits IL-17-mediated inflammatory bone loss

    Mehmet A Eskan;Ravi Jotwani;Toshiharu Abe;Toshiharu Abe;Jindrich Chmelar

  • Basic biology and role of interleukin‐17 in immunity and inflammation

    Camille Zenobia;George Hajishengallis

  • Novel mechanisms and functions of complement

    George Hajishengallis;Edimara S Reis;Dimitrios C Mastellos;Daniel Ricklin

  • New insights into the immune functions of complement.

    Edimara S. Reis;Dimitrios C. Mastellos;George Hajishengallis;John D. Lambris

  • Porphyromonas gingivalis Manipulates Complement and TLR Signaling to Uncouple Bacterial Clearance from Inflammation and Promote Dysbiosis

    Tomoki Maekawa;Jennifer L. Krauss;Toshiharu Abe;Ravi Jotwani

  • A New Inflammatory Cytokine on the Block: Re-thinking Periodontal Disease and the Th1/Th2 Paradigm in the Context of Th17 Cells and IL-17

    S.L. Gaffen;G. Hajishengallis

  • The inflammophilic character of the periodontitis‐associated microbiota

    George Hajishengallis

Frequent Co-Authors

John D. Lambris
John D. Lambris University of Pennsylvania
Michael W. Russell
Michael W. Russell University at Buffalo, State University of New York
Suzanne M. Michalek
Suzanne M. Michalek University of Alabama at Birmingham
Daniel Ricklin
Daniel Ricklin University of Basel
Richard J. Lamont
Richard J. Lamont University of Louisville
Niki M. Moutsopoulos
Niki M. Moutsopoulos National Institutes of Health
Michael A. Curtis
Michael A. Curtis King's College London
Fuminobu Yoshimura
Fuminobu Yoshimura Aichi Gakuin University
Tom Eirik Mollnes
Tom Eirik Mollnes Oslo University Hospital

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