World's Best Scientists 2026 revealed!

D-Index & Metrics

Immunology

D-Index
66
Citations
13375
World Ranking
2787
National Ranking
1

Ali H. Hajeer 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 Ali H. Hajeer 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: 278 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.

Ali H. Hajeer 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 Ali H. Hajeer 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: 66 D-Index — 45th percentile

45% of scientists in this discipline score the same or lower.

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

Overview

Ali H. Hajeer is affiliated with King Saud bin Abdulaziz University for Health Sciences in Saudi Arabia. Their research primarily spans the fields of Immunology and Microbiology as well as Medicine, with contributions across several subfields including Immunology, Infectious Diseases, Hematology, Genetics, and Transplantation.

Their work encompasses diverse topics related to immune function and disease, with a focus on:

  • T-cell and B-cell Immunology
  • Immune Cell Function and Interaction
  • Immunotherapy and Immune Responses
  • COVID-19 Clinical Research Studies
  • SARS-CoV-2 and COVID-19 Research
  • Hematopoietic Stem Cell Transplantation
  • Diabetes and associated disorders

Ali H. Hajeer's frequent collaborators include Dunia Jawdat, Ahmed Alaskar, Hana Fakhoury, Yaseen M. Arabi, and Abdullah Alshubaili.

They have published research in a range of scientific venues, notably with multiple papers in the journal HLA. Other journals featuring their work include the Journal of Epidemiology and Global Health, Journal of Infection and Public Health, Frontiers in Surgery, and Transplantation Proceedings.

Selected recent papers authored or coauthored by Ali H. Hajeer include:

  • "Common, intermediate and well-documented HLA alleles in world populations: CIWD version 3.0.0," 2020, published in HLA
  • "HLA-A, -B, -C, -DRB1, -DQB1, and -DPB1 Allele and Haplotype Frequencies of 28,927 Saudi Stem Cell Donors Typed by Next-Generation Sequencing," 2020, published in Frontiers in Immunology
  • "Association of KIR gene polymorphisms with COVID-19 disease," 2021, published in Clinical Immunology
  • "Correlation between ABO Blood Group Phenotype and the Risk of COVID-19 Infection and Severity of Disease in a Saudi Arabian Cohort," 2022, published in Journal of Epidemiology and Global Health
  • "The most frequent HLA alleles around the world: A fundamental synopsis," 2024, published in Best Practice & Research Clinical Haematology

Best Publications

  • In vitro production of IFN-gamma correlates with CA repeat polymorphism in the human IFN-gamma gene.

    V. Pravica;A. Asderakis;C. Perrey;C. Perrey;A. Hajeer

  • Middle East Respiratory Syndrome

    Yaseen M. Arabi;Hanan H. Balkhy;Frederick G. Hayden;Abderrezak Bouchama

  • Influence of TNFα gene polymorphisms on TNFα production and disease

    Ali H. Hajeer;Ian V. Hutchinson

  • Severe neurologic syndrome associated with Middle East respiratory syndrome corona virus (MERS-CoV)

    Y. M. Arabi;A. Harthi;J. Hussein;A. Bouchama

  • TNF-α gene polymorphism: Clinical and biological implications

    Ali H. Hajeer;Ian V. Hutchinson

  • Sjögren's syndrome: a community-based study of prevalence and impact.

    E Thomas;E M Hay;A Hajeer;A J Silman

  • Genetic variation in the interleukin 10 gene promoter and systemic lupus erythematosus.

    Mark Lazarus;Ali H. Hajeer;David Turner;Paul Sinnott

  • Histopathology of Middle East respiratory syndrome coronovirus (MERS-CoV) infection – clinicopathological and ultrastructural study

    Khaled O Alsaad;Ali H Hajeer;Mohammed Al Balwi;Mohammed Al Moaiqel

  • Weak association between subjective symptoms or and objective testing for dry eyes and dry mouth: results from a population based study.

    Elaine M Hay;E Thomas;B Pal;Ali Hajeer

  • Feasibility of Using Convalescent Plasma Immunotherapy for MERS-CoV Infection, Saudi Arabia

    Yaseen M. Arabi;Yaseen M. Arabi;Ali H. Hajeer;Thomas Luke;Kanakatte Raviprakash

  • HLA-DRB1 status affects endothelial function in treated patients with rheumatoid arthritis

    Carlos Gonzalez-Juanatey;Ana Testa;Alberto Garcia-Castelo;Carlos Garcia-Porrua

  • Chemokine RANTES promoter polymorphism affects risk of both HIV infection and disease progression in the Multicenter AIDS Cohort study

    David H. McDermott;Matthew J. Beecroft;Cynthia A. Kleeberger;Fadwa M. Al-Sharif

  • Interleukin-10 (IL-10) genotypes in inflammatory bowel disease.

    A. Tagore;W.M. Gonsalkorale;V. Pravica;A.H. Hajeer

  • Feasibility, safety, clinical, and laboratory effects of convalescent plasma therapy for patients with Middle East respiratory syndrome coronavirus infection: a study protocol.

    Yaseen Arabi;Hanan Balkhy;Ali H. Hajeer;Abderrezak Bouchama

  • IL-10 gene promoter polymorphisms in rheumatoid arthritis

    Ali H. Hajeer;Mark Lazarus;David Turner;Rizgar A. Mageed

  • Influence of human leukocyte antigen-DRB1 on the susceptibility and severity of rheumatoid arthritis.

    Miguel A. Gonzalez-Gay;Carlos Garcia-Porrua;Ali H. Hajeer

  • The spectrum of polymyalgia rheumatica in Northwestern Spain : Incidence and analysis of variables associated with relapse in a 10 year study

    Miguel A. González-Gay;Carlos García-Porrúa;Manuel Vázquez-Caruncho;Adele Dababneh

  • Giant cell arteritis and polymyalgia rheumatica can be differentiated by distinct patterns of HLA class II association

    Adele Dababneh;Miguel A. Gonzalez-Gay;Carlos Garcia-Porrua;Ali Hajeer

  • Two novel biallelic polymorphisms in the IL‐2 gene

    S. John;D. Turner;R. Donn;P. Sinnott

  • The -403 G-->A promoter polymorphism in the RANTES gene is associated with atopy and asthma.

    A. A. Fryer;M. A. Spiteri;A. Bianco;M. Hepple

  • Common, intermediate and well-documented HLA alleles in world populations: CIWD version 3.0.0.

    Carolyn Katovich Hurley;Jane Kempenich;Kim Wadsworth;Jürgen Sauter

  • Association of transforming growth factor beta-1 single nucleotide polymorphisms with radiation-induced damage to normal tissues in breast cancer patients.

    Steven L Quarmby;H Fakhoury;Edward Levine;J Barber

Frequent Co-Authors

William E R Ollier
William E R Ollier University of Manchester
Wendy Thomson
Wendy Thomson University of Manchester
Miguel A. González-Gay
Miguel A. González-Gay University of Cantabria
Jane Worthington
Jane Worthington University of Manchester
Alan J. Silman
Alan J. Silman University of Oxford
Yaseen M. Arabi
Yaseen M. Arabi King Saud bin Abdulaziz University for Health Sciences
Derek L. Mattey
Derek L. Mattey Keele University
Ian V. Hutchinson
Ian V. Hutchinson University of Southern California
Ziad A. Memish
Ziad A. Memish Emory University
Ahmet Gül
Ahmet Gül Istanbul University

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