World's Best Scientists 2026 revealed!
William M. Shafer

William M. Shafer

D-Index & Metrics

Microbiology

D-Index
69
Citations
14628
World Ranking
2085
National Ranking
876

William M. Shafer 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 William M. Shafer 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: 207 publications — 51st percentile

51% of scientists in this discipline score the same or lower.

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

William M. Shafer 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 William M. Shafer 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: 69 D-Index — 64th percentile

64% of scientists in this discipline score the same or lower.

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

Research.com Recognitions

  • 1954 - Fellow of the American Association for the Advancement of Science (AAAS)

Overview

William M. Shafer is affiliated with Emory University in the United States and has contributed extensively to research in the fields of immunology, microbiology, and medicine. Their work spans various subfields including microbiology, physiology, infectious diseases, epidemiology, and molecular medicine.

Their main research topics focus on reproductive tract infections, bacterial infections and vaccines, syphilis diagnosis and treatment, as well as antibiotic resistance and infections caused by Clostridium difficile and Clostridium perfringens. Further areas of study include amoebic infections and treatments, and respiratory infections such as pneumonia.

William M. Shafer has published notable papers including:

  • A community-driven resource for genomic epidemiology and antimicrobial resistance prediction of Neisseria gonorrhoeae at Pathogenwatch (2021) in Genome Medicine
  • The serogroup B meningococcal outer membrane vesicle-based vaccine 4CMenB induces cross-species protection against Neisseria gonorrhoeae (2020) in PLoS Pathogens
  • Genomic evolution of Neisseria gonorrhoeae since the preantibiotic era (1928-2013): antimicrobial use/misuse selects for resistance and drives evolution (2020) in BMC Genomics
  • Cryo-EM Structures of a Gonococcal Multidrug Efflux Pump Illuminate a Mechanism of Drug Recognition and Resistance (2020) in mBio
  • Azithromycin susceptibility of Neisseria gonorrhoeae in the USA in 2017: a genomic analysis of surveillance data (2020) in The Lancet Microbe

Frequent coauthors collaborating with William M. Shafer include:

  • Jacqueline T. Balthazar
  • Ann E. Jerse
  • Magnus Unemo
  • Julio C. Ayala
  • Concerta L. Holley

They have published regularly in venues such as mBio, bioRxiv (Cold Spring Harbor Laboratory), UNC Libraries, PLoS Pathogens, and Microbiology Spectrum. These journals reflect a focus on microbiological and infectious disease research.

William M. Shafer was named a Fellow of the American Association for the Advancement of Science (AAAS) in 1954.

Best Publications

  • Antimicrobial Resistance in Neisseria gonorrhoeae in the 21st Century: Past, Evolution, and Future

    Magnus Unemo;William M. Shafer;William M. Shafer

  • Degradation of Human Antimicrobial Peptide LL-37 by Staphylococcus aureus-Derived Proteinases

    Magdalena Sieprawska-Lupa;Piotr Mydel;Katarzyna Krawczyk;Kinga Wójcik

  • Modulation of Neisseria gonorrhoeae susceptibility to vertebrate antibacterial peptides due to a member of the resistance/nodulation/division efflux pump family

    W. M. Shafer;X.-D. Qu;A. J. Waring;R. I. Lehrer

  • Resistance of Neisseria gonorrhoeae to antimicrobial hydrophobic agents is modulated by the mtrRCDE efflux system

    Kayla E. Hagman;Wubin Pan;Brian G. Spratt;Jacqueline T. Balthazar

  • Cationic Antimicrobial Peptide Resistance in Neisseria meningitidis

    Yih-Ling Tzeng;Karita D. Ambrose;Susu Zughaier;Xiaoliu Zhou

  • Antibiotic resistance in Neisseria gonorrhoeae: origin, evolution, and lessons learned for the future

    Magnus Unemo;William M. Shafer

  • Cationic antimicrobial proteins isolated from human neutrophil granulocytes in the presence of diisopropyl fluorophosphate.

    W M Shafer;L E Martin;J K Spitznagel

  • Clinically Relevant Mutations that Cause Derepression of the Neisseria gonorrhoeae MtrC-MtrD-MtrE Efflux Pump System Confer Different Levels of Antimicrobial Resistance and In Vivo Fitness

    Douglas M. Warner;William M. Shafer;William M. Shafer;Ann E. Jerse

  • Antimicrobial Resistance Expressed by Neisseria gonorrhoeae: A Major Global Public Health Problem in the 21st Century

    Magnus Unemo;Carlos del Rio;William M. Shafer;William M. Shafer

  • A gonococcal efflux pump system enhances bacterial survival in a female mouse model of genital tract infection.

    Ann E. Jerse;Nirmala D. Sharma;Amy N. Simms;Emily T. Crow

  • Transcriptional control of the mtr efflux system of Neisseria gonorrhoeae.

    K E Hagman;W M Shafer

  • Overexpression of the MtrC-MtrD-MtrE Efflux Pump Due to an mtrR Mutation Is Required for Chromosomally Mediated Penicillin Resistance in Neisseria gonorrhoeae

    Wendy L. Veal;Wendy L. Veal;Robert A. Nicholas;William M. Shafer;William M. Shafer

  • Neisseria gonorrhoeae: Drug Resistance, Mouse Models, and Vaccine Development.

    Peter A Rice;William M Shafer;Sanjay Ram;Ann E Jerse

  • Decreased azithromycin susceptibility of Neisseria gonorrhoeae due to mtrR mutations.

    Leticia Zarantonelli;Graciela Borthagaray;Eun-Hee Lee;Eun-Hee Lee;William M. Shafer;William M. Shafer

  • The farAB-encoded efflux pump mediates resistance of gonococci to long-chained antibacterial fatty acids

    Eun Hee Lee;William M. Shafer;William M. Shafer

  • CAP37, a human neutrophil-derived chemotactic factor with monocyte specific activity

    H A Pereira;W M Shafer;J Pohl;L E Martin

  • The NorM Efflux Pump of Neisseria gonorrhoeae and Neisseria meningitidis Recognizes Antimicrobial Cationic Compounds

    Corinne E Rouquette-Loughlin;Steven A Dunham;Michael Kuhn;Jacqueline T Balthazar

  • Multidrug-resistant gonorrhea: A research and development roadmap to discover new medicines.

    Emilie Alirol;Teodora E. Wi;Manju Bala;Maria Luiza Bazzo

  • The MtrD protein of Neisseria gonorrhoeae is a member of the resistance/nodulation/division protein family constituting part of an efflux system

    Kayla E. Hagman;Claressa E. Lucas;Jacqueline T. Balthazar;Lori Snyder

  • Experimental Gonococcal Infection in Male Volunteers: Cumulative Experience with Neisseria gonorrhoeae Strains FA1090 and MS11mkC

    Marcia Metzgar Hobbs;Philip Frederick Sparling;Myron S. Cohen;William M. Shafer;William M. Shafer

  • Genetics of staphylococcal enterotoxin B in methicillin-resistant isolates of Staphylococcus aureus.

    W M Shafer;J J Iandolo

Frequent Co-Authors

Ann E. Jerse
Ann E. Jerse Uniformed Services University of the Health Sciences
Magnus Unemo
Magnus Unemo Örebro University
David S. Stephens
David S. Stephens Emory University
Jan Pohl
Jan Pohl Centers for Disease Control and Prevention
Daniel Golparian
Daniel Golparian Örebro University
Timothy D. Read
Timothy D. Read Emory University
Russell W. Carlson
Russell W. Carlson University of Georgia
Yonatan H. Grad
Yonatan H. Grad Harvard University
Peter A. Rice
Peter A. Rice University of Massachusetts Chan Medical School
Simon R. Harris
Simon R. Harris Wellcome Sanger Institute

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