World's Best Scientists 2026 revealed!
Peter Karayiannis

Peter Karayiannis

D-Index & Metrics

Immunology

D-Index
55
Citations
13601
World Ranking
3784
National Ranking
1

Peter Karayiannis 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 Peter Karayiannis 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: 234 publications — 46th percentile

46% of scientists in this discipline score the same or lower.

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

Peter Karayiannis 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 Peter Karayiannis 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: 55 D-Index — 24th percentile

24% of scientists in this discipline score the same or lower.

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

Overview

Peter Karayiannis is affiliated with the University of Nicosia in Cyprus and has concentrated their research primarily in the field of Medicine, with a particular focus on subfields such as Epidemiology, Infectious Diseases, Hepatology, Neurology, and Public Health, Environmental and Occupational Health.

The main topics addressed in their work include:

  • Hepatitis B Virus Studies
  • Hepatitis C virus research
  • COVID-19 Clinical Research Studies
  • Long-Term Effects of COVID-19
  • SARS-CoV-2 and COVID-19 Research
  • COVID-19 and Mental Health
  • Phosphodiesterase function and regulation

Among the recent papers published by Peter Karayiannis are:

  • "New Approaches to the Treatment of Chronic Hepatitis B," 2020, Journal of Clinical Medicine
  • "Extensive Testing and Public Health Interventions for the Control of COVID-19 in the Republic of Cyprus between March and May 2020," 2020, Journal of Clinical Medicine
  • "Developing a holistic contingency plan: Challenges and dilemmas for cancer patients during the COVID-19," 2020, Cancer Medicine
  • "Circulating IgG Levels in SARS-CoV-2 Convalescent Individuals in Cyprus," 2021, Journal of Clinical Medicine
  • "Development of hepatic pathology in GBV-B-infected red-bellied tamarins (Saguinus labiatus)," 2020, Journal of Medical Virology

Frequent collaborators include:

  • Annalisa Quattrocchi
  • Mark Thursz
  • Fouzia Sadiq
  • Julia A. Tree
  • David W. C. Beasley

Peter Karayiannis's work is commonly published in venues such as:

  • Journal of Clinical Medicine
  • Journal of General Virology
  • bioRxiv (Cold Spring Harbor Laboratory)
  • Cancer Medicine
  • Journal of Medical Virology

Best Publications

  • Molecular Cloning and Disease Association of Hepatitis G Virus: A Transfusion-Transmissible Agent

    Jeff Linnen;John Wages;Zhen-Yong Zhang-Keck;Kirk E. Fry

  • MUTATION PREVENTING FORMATION OF HEPATITIS B e ANTIGEN IN PATIENTS WITH CHRONIC HEPATITIS B INFECTION

    W.F Carman;S Hadziyannis;M.J Mcgarvey;M.R Jacyna

  • Vaccine-induced escape mutant of hepatitis B virus

    W.F. Carman;P. Karayiannis;J. Waters;H.C. Thomas

  • Natural history of chronic hepatitis B virus infection in taiwan: Studies of hepatitis B virus DNA in serum

    Chia‐Ming ‐M Chu;Peter Karayiannis;Martin J.F. Fowler;Jon Monjardino

  • Which patients with chronic hepatitis B virus infection will respond to α-interferon therapy? A statistical analysis of predictive factors

    M. Gary Brook;Peter Karayiannis;Howard C. Thomas

  • Identification of Unique Hepatitis C Virus Quasispecies in the Central Nervous System and Comparative Analysis of Internal Translational Efficiency of Brain, Liver, and Serum Variants

    Daniel M. Forton;Peter Karayiannis;Nadiya Mahmud;Simon D. Taylor-Robinson

  • Prevalence of naturally occurring surface gene variants of hepatitis B virus in nonimmunized surface antigen–negative Chinese carriers

    Jinlin Hou;Zhanghui Wang;Jinjun Cheng;Yulong Lin

  • Delayed anti-HCV antibody response in HIV-positive men acutely infected with HCV.

    Emma C Thomson;Eleni Nastouli;Janice Main;Peter Karayiannis

  • Predicting spontaneous clearance of acute hepatitis C virus in a large cohort of HIV-1-infected men

    Emma C Thomson;Vicki M Fleming;Janice Main;Paul Klenerman

  • Diminished responsiveness of male homosexual chronic hepatitis B virus carriers with HTLV‐III antibodies to recombinant α‐interferon

    J. A. McDonald;J. A. McDonald;L. Caruso;L. Caruso;P. Karayiannis;P. Karayiannis;L. J. Scully;L. J. Scully

  • Transfer of a functioning humoral immune system in transplantation of T-lymphocyte-depleted bone marrow.

    J.Z. Wimperis;H.G. Prentice;P. Karayiannis;M.K. Brenner

  • High risk of non-A non-B hepatitis after a first exposure to volunteer or commercial clotting factor concentrates: effects of prophylactic immune serum globulin.

    P. B. A. Kernoff;C. A. Lee;P. Karayiannis;H. C. Thomas

  • Effect of variation in the common "a" determinant on the antigenicity of hepatitis B surface antigen.

    Siamak Seddigh-Tonekaboni;Jennifer A. Waters;Sarah Jeffers;Ralph Gehrke

  • Effect of basal core promoter and pre-core mutations on hepatitis B virus replication.

    Saffie Jammeh;Fiona Tavner;Roger Watson;Howard C. Thomas

  • A double blind, placebo-controlled study to assess the effect of famciclovir on virus replication in patients with chronic hepatitis B virus infection

    J. Main;J. L. Brown;C. Howells;R. Galassini

  • Hepatitis B virus: old, new and future approaches to antiviral treatment

    Peter Karayiannis

  • A unique insertion in the S gene of surface antigen-negative hepatitis B virus Chinese carriers

    Jinlin Hou;Peter Karayiannis;Jenny Waters;Kangxian Luo

  • Contribution of low level HBV replication to continuing inflammatory activity in patients with anti-HBe positive chronic hepatitis B virus infection.

    A. S.F. Lok;S. J. Hadziyannis;I. V.D. Weller;M. G. Karvountzis

  • Transmission of hepatitis B virus infection in Gambian families revealed by phylogenetic analysis.

    Uga Dumpis;Uga Dumpis;Edward Charles Holmes;Maimuna Mendy;Adrian Hill

  • Randomised controlled trial of interferon alfa 2A (rbe) (Roferon-A) for the treatment of chronic hepatitis B virus (HBV) infection: factors that influence response.

    M. G. Brook;J. A. Mcdonald;P. Karayiannis;L. Caruso

Frequent Co-Authors

Howard C. Thomas
Howard C. Thomas Imperial College London
Robert D. Goldin
Robert D. Goldin Imperial College London
Stephanos J. Hadziyannis
Stephanos J. Hadziyannis National and Kapodistrian University of Athens
Mark Thursz
Mark Thursz Imperial College London
William F. Carman
William F. Carman University of Glasgow
Tatsuo Miyamura
Tatsuo Miyamura National Institutes of Health
Seyed Moayed Alavian
Seyed Moayed Alavian Baqiyatallah University of Medical Sciences
Adrian V. S. Hill
Adrian V. S. Hill University of Oxford
Paul Klenerman
Paul Klenerman University of Oxford
Sheila Sherlock
Sheila Sherlock The Royal Free Hospital

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Related Online Degrees & Career Pathways

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Cost is a major consideration for many students. Those wanting to balance quality with affordability should review the cheapest online PMHNP programs, which enable effective specialization without excessive financial burden.

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