World's Best Scientists 2026 revealed!

D-Index & Metrics

Microbiology

D-Index
41
Citations
8642
World Ranking
5415
National Ranking
2046

Michael A. Purdy 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 Michael A. Purdy 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: 91 publications — 3rd percentile

3% of scientists in this discipline score the same or lower.

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

Michael A. Purdy 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 Michael A. Purdy 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: 41 D-Index — 2nd percentile

2% of scientists in this discipline score the same or lower.

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

Overview

Michael A. Purdy is affiliated with the Centers for Disease Control and Prevention in the United States. Their research primarily focuses on the fields of Medicine, with a particular concentration in Hepatology, Epidemiology, and Infectious Diseases.

The scientist's work spans several specialized subfields, including:

  • Hepatology
  • Epidemiology
  • Infectious Diseases
  • Immunology
  • Pharmaceutical Science

Michael A. Purdy's research topics incorporate a variety of areas within viral and liver diseases, including:

  • Hepatitis Viruses Studies and Epidemiology
  • Hepatitis B Virus Studies
  • Hepatitis C virus research
  • Viral gastroenteritis research and epidemiology
  • Liver Disease and Transplantation
  • Immunotherapy and Immune Responses
  • Advancements in Transdermal Drug Delivery

The scientist has published multiple papers, demonstrating a sustained contribution to the field. Notable recent publications include:

  • Update: proposed reference sequences for subtypes of hepatitis E virus (species Orthohepevirus A), 2020, Journal of General Virology
  • ICTV Virus Taxonomy Profile: Hepeviridae 2022, 2022, Journal of General Virology
  • Hepatitis B vaccine delivered by microneedle patch: Immunogenicity in mice and rhesus macaques, 2023, Vaccine
  • Cell Culture Systems for Studying Hepatitis B and Hepatitis D Virus Infections, 2023, Life
  • Hepatitis A virus survival on drug paraphernalia, 2020, Journal of Viral Hepatitis

The scientist frequently publishes in a select group of journals, reflecting focused expertise. These publication venues include:

  • Journal of General Virology
  • Vaccine
  • Life
  • Journal of Viral Hepatitis
  • PLoS ONE

Michael A. Purdy collaborates regularly with a group of recurrent coauthors, indicating established professional relationships in their research community. Frequent coauthors include:

  • You-kyung Choi
  • Donald B. Smith
  • Xiang-Jin Meng
  • Heléne Norder
  • Hiroaki Okamoto

Best Publications

  • Isolation of a cDNA from the virus responsible for enterically transmitted non-A, non-B hepatitis.

    Gregory R. Reyes;Michael A. Purdy;Jungsuh P. Kim;Ka-Cheung Luk

  • Consensus proposals for classification of the family Hepeviridae

    Donald B. Smith;Peter Simmonds;Shahid Jameel

  • Computer-assisted assignment of functional domains in the nonstructural polyprotein of hepatitis E virus: delineation of an additional group of positive-strand RNA plant and animal viruses

    Eugene V. Koonin;Alexander E. Gorbalenya;Michael A. Purdy;Mikhail N. Rozanov

  • Chronic Infection With Camelid Hepatitis E Virus in a Liver Transplant Recipient Who Regularly Consumes Camel Meat and Milk.

    Guan Huei Lee;Guan Huei Lee;Boon Huan Tan;Esmeralda Chi-Yuan Teo;Seng Gee Lim;Seng Gee Lim

  • Proposed reference sequences for hepatitis E virus subtypes

    Donald B. Smith;Peter Simmonds;Jacques Izopet;Edmilson F. Oliveira-Filho

  • Update: proposed reference sequences for subtypes of hepatitis E virus (species Orthohepevirus A).

    Donald B. Smith;Jacques Izopet;Florence Nicot;Peter Simmonds

  • ICTV Virus Taxonomy Profile: Hepeviridae

    Michael A. Purdy;Tim J. Harrison;S. Jameel;X-J. Meng

  • Serologic identification of hepatitis E virus infections in epidemic and endemic settings.

    M. O. Favorov;H. A. Fields;M. A. Purdy;T. L. Yashina

  • Hepatitis A virus: host interactions, molecular epidemiology and evolution

    Gilberto Vaughan;Livia Maria Goncalves Rossi;Joseph C. Forbi;Vanessa S. de Paula

  • Genetic Variability and the Classification of Hepatitis E Virus

    Donald B. Smith;Michael A. Purdy;Peter Simmonds

  • Preliminary evidence that a trpE-HEV fusion protein protects cynomolgus macaques against challenge with wild-type hepatitis e virus (HEV)

    Michael A. Purdy;Karen A. McCaustland;Kris Krawczynski;John Spelbring

  • The sequence of hepatitis E virus isolated directly from a single source during an outbreak in China

    Sheng-Li Bi;Michael A. Purdy;Karen A. McCaustland;Harold S. Margolis

  • Evolutionary History and Population Dynamics of Hepatitis E Virus

    Michael A. Purdy;Yury E. Khudyakov

  • Epidemic history and evolutionary dynamics of hepatitis B virus infection in two remote communities in rural Nigeria.

    Joseph C. Forbi;Gilberto Vaughan;Michael A. Purdy;David S. Campo

  • Acute Sporadic Hepatitis E in Sudanese Children: Analysis Based on a New Western Blot Assay

    K. C. Hyams;M. A. Purdy;M. Kaur;M. C. Mccarthy

  • The molecular epidemiology of hepatitis E virus infection.

    Michael A. Purdy;Yury E. Khudyakov

  • A Novel Hepacivirus with an Unusually Long and Intrinsically Disordered NS5A Protein in a Wild Old World Primate

    Michael Lauck;Samuel D. Sibley;James Lara;Michael A. Purdy

  • Expression of the hepatitis E virus ORF1

    S. L. Ropp;A. W. Tam;B. Beames;M. Purdy

  • A new algorithm for deduction of hepatitis B surface antigen subtype determinants from the amino acid sequence.

    Michael A. Purdy;Ganesh Talekar;Paul Swenson;Aufra Araujo

  • The hepatitis E virus polyproline region is involved in viral adaptation.

    Michael A. Purdy;James Lara;Yury E. Khudyakov

  • Expression of a hepatitis E virus (HEV)-trpE fusion protein containing epitopes recognized by antibodies in sera from human cases and experimentally infected primates.

    M. A. Purdy;K. A. McCaustland;K. Krawczynski;A. Tam

Frequent Co-Authors

Yury Khudyakov
Yury Khudyakov Centers for Disease Control and Prevention
Daniel W. Bradley
Daniel W. Bradley Centers for Disease Control and Prevention
Krzysztof Krawczynski
Krzysztof Krawczynski Centers for Disease Control and Prevention
Howard A. Fields
Howard A. Fields Centers for Disease Control and Prevention
Peter Simmonds
Peter Simmonds University of Oxford
Xiang-Jin Meng
Xiang-Jin Meng Virginia Tech
Hiroaki Okamoto
Hiroaki Okamoto Jichi Medical University
B. Douglas Smith
B. Douglas Smith Johns Hopkins University
Susan L. Stramer
Susan L. Stramer American Red Cross
William M. Switzer
William M. Switzer Centers for Disease Control and Prevention

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