World's Best Scientists 2026 revealed!

D-Index & Metrics

Medicine

D-Index
84
Citations
40368
World Ranking
14846
National Ranking
7506

L. Clifford McDonald publication distribution in Medicine in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Medicine in 2026. The highlighted bar marks where L. Clifford McDonald sits on this spectrum.

101–120 publications: 5 scientists 121–140 publications: 26 scientists 141–160 publications: 73 scientists 161–180 publications: 155 scientists 181–200 publications: 230 scientists 201–220 publications: 363 scientists 221–240 publications: 487 scientists 241–260 publications: 545 scientists 261–280 publications: 722 scientists 281–300 publications: 768 scientists 301–320 publications: 834 scientists 321–340 publications: 895 scientists 341–360 publications: 922 scientists 361–380 publications: 838 scientists 381–400 publications: 861 scientists 401–420 publications: 918 scientists 421–440 publications: 806 scientists 441–460 publications: 771 scientists 461–480 publications: 751 scientists 481–500 publications: 713 scientists 501–520 publications: 617 scientists 521–540 publications: 611 scientists 541–560 publications: 537 scientists 561–580 publications: 504 scientists 581–600 publications: 509 scientists 601–620 publications: 396 scientists 621–640 publications: 386 scientists 641–660 publications: 371 scientists 661–680 publications: 340 scientists 681–700 publications: 336 scientists 701–720 publications: 307 scientists 721–740 publications: 259 scientists 741–760 publications: 230 scientists 761–780 publications: 228 scientists 781–800 publications: 217 scientists 801–820 publications: 204 scientists 821–840 publications: 186 scientists 841–860 publications: 177 scientists 861–880 publications: 155 scientists 881–900 publications: 139 scientists 901–920 publications: 145 scientists 921–940 publications: 116 scientists 941–960 publications: 133 scientists 961–980 publications: 91 scientists 981–1,000 publications: 96 scientists 1,001–1,020 publications: 77 scientists 1,021–1,040 publications: 70 scientists 1,041–1,060 publications: 63 scientists 1,061–1,080 publications: 77 scientists 1,081–1,100 publications: 49 scientists 1,101–1,120 publications: 54 scientists 1,121–1,140 publications: 49 scientists 1,141–1,160 publications: 51 scientists 1,161–1,180 publications: 35 scientists 1,181–1,200 publications: 39 scientists 1,201–1,220 publications: 26 scientists 1,221–1,240 publications: 37 scientists 1,241–1,260 publications: 36 scientists 1,261–1,280 publications: 27 scientists 1,281–1,300 publications: 32 scientists 1,301–1,320 publications: 28 scientists 1,321–1,340 publications: 17 scientists 1,341–1,360 publications: 30 scientists 1,361–1,380 publications: 28 scientists 1,381–1,400 publications: 17 scientists 1,401–1,420 publications: 21 scientists 1,421–1,440 publications: 15 scientists 1,441–1,460 publications: 12 scientists 1,461–1,480 publications: 12 scientists 1,481–1,500 publications: 18 scientists 1,501–1,520 publications: 14 scientists 1,521–1,540 publications: 17 scientists 1,541–1,560 publications: 15 scientists 1,561–1,580 publications: 6 scientists 1,581–1,600 publications: 2 scientists 1,601–1,620 publications: 12 scientists 1,621–1,640 publications: 11 scientists 1,641–1,660 publications: 8 scientists 1,661–1,680 publications: 5 scientists 1,681–1,700 publications: 5 scientists 1,701–1,720 publications: 10 scientists 1,721–1,740 publications: 12 scientists 1,741–1,760 publications: 14 scientists 1,761–1,780 publications: 6 scientists 1,781–1,795 publications: 5 scientists 1,796+ publications: 100 scientists
101 publications 1,796+

This scientist: 239 publications — 7th percentile

7% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 1,796 publications or more.

L. Clifford McDonald D-index placement in Medicine in 2026

The chart shows the D-index (discipline H-index) distribution of Medicine scientists ranked by Research.com in 2026. The highlighted bar marks where L. Clifford McDonald sits on this spectrum.

70–71 D-Index: 226 scientists 72–73 D-Index: 391 scientists 74–75 D-Index: 574 scientists 76–77 D-Index: 730 scientists 78–79 D-Index: 891 scientists 80–81 D-Index: 972 scientists 82–83 D-Index: 1,027 scientists 84–85 D-Index: 1,003 scientists 86–87 D-Index: 960 scientists 88–89 D-Index: 970 scientists 90–91 D-Index: 922 scientists 92–93 D-Index: 839 scientists 94–95 D-Index: 808 scientists 96–97 D-Index: 779 scientists 98–99 D-Index: 668 scientists 100–101 D-Index: 611 scientists 102–103 D-Index: 630 scientists 104–105 D-Index: 513 scientists 106–107 D-Index: 541 scientists 108–109 D-Index: 445 scientists 110–111 D-Index: 429 scientists 112–113 D-Index: 400 scientists 114–115 D-Index: 393 scientists 116–117 D-Index: 318 scientists 118–119 D-Index: 302 scientists 120–121 D-Index: 287 scientists 122–123 D-Index: 255 scientists 124–125 D-Index: 256 scientists 126–127 D-Index: 252 scientists 128–129 D-Index: 230 scientists 130–131 D-Index: 179 scientists 132–133 D-Index: 168 scientists 134–135 D-Index: 163 scientists 136–137 D-Index: 159 scientists 138–139 D-Index: 134 scientists 140–141 D-Index: 134 scientists 142–143 D-Index: 118 scientists 144–145 D-Index: 109 scientists 146–147 D-Index: 106 scientists 148–149 D-Index: 74 scientists 150–151 D-Index: 79 scientists 152–153 D-Index: 80 scientists 154–155 D-Index: 87 scientists 156–157 D-Index: 57 scientists 158–159 D-Index: 74 scientists 160–161 D-Index: 69 scientists 162–163 D-Index: 60 scientists 164–165 D-Index: 53 scientists 166–167 D-Index: 39 scientists 168–169 D-Index: 42 scientists 170–171 D-Index: 32 scientists 172–173 D-Index: 39 scientists 174–175 D-Index: 40 scientists 176–177 D-Index: 28 scientists 178–179 D-Index: 19 scientists 180–181 D-Index: 23 scientists 182–183 D-Index: 31 scientists 184–185 D-Index: 18 scientists 186–187 D-Index: 20 scientists 188–189 D-Index: 22 scientists 190–191 D-Index: 13 scientists 192–193 D-Index: 21 scientists 194–195 D-Index: 12 scientists 196–197 D-Index: 12 scientists 198–199 D-Index: 14 scientists 200–201 D-Index: 15 scientists 202–203 D-Index: 13 scientists 204–205 D-Index: 10 scientists 206–207 D-Index: 8 scientists 208–209 D-Index: 4 scientists 210–211 D-Index: 12 scientists 212–213 D-Index: 11 scientists 214–215 D-Index: 10 scientists 216 D-Index: 4 scientists 217+ D-Index: 98 scientists
70 D-Index 217+

This scientist: 84 D-Index — 27th percentile

27% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 217 D-Index or more.

Overview

L. Clifford McDonald is affiliated with the Centers for Disease Control and Prevention in the United States. Their research primarily focuses on infectious diseases, with a significant body of work in epidemiology and applied microbiology and biotechnology. Specific subfields include clinical biochemistry and critical care and intensive care medicine.

Their research concentrates on several main topics including:

  • Clostridium difficile and Clostridium perfringens research
  • SARS-CoV-2 and COVID-19 Research
  • Antibiotic Use and Resistance
  • COVID-19 Clinical Research Studies
  • SARS-CoV-2 detection and testing
  • Bacterial Identification and Susceptibility Testing
  • Nosocomial Infections in ICU

McDonald has published extensively in medical and infectious disease journals. Frequent publication venues include:

  • Open Forum Infectious Diseases
  • Clinical Infectious Diseases
  • Infection Control and Hospital Epidemiology
  • MMWR Morbidity and Mortality Weekly Report
  • bioRxiv (Cold Spring Harbor Laboratory)

Among notable recent papers are:

  • "Trends in U.S. Burden of Clostridioides difficile Infection and Outcomes," 2020, New England Journal of Medicine
  • "Multidrug-Resistant Bacterial Infections in U.S. Hospitalized Patients, 2012-2017," 2020, New England Journal of Medicine
  • "Summary of Guidance for Public Health Strategies to Address High Levels of Community Transmission of SARS-CoV-2 and Related Deaths, December 2020," 2020, MMWR Morbidity and Mortality Weekly Report
  • "SARS-CoV-2 Serologic Assay Needs for the Next Phase of the US COVID-19 Pandemic Response," 2020, Open Forum Infectious Diseases
  • "Performance Evaluation of Serial SARS-CoV-2 Rapid Antigen Testing During a Nursing Home Outbreak," 2021, Annals of Internal Medicine

McDonald collaborates frequently with several researchers, including:

  • Preeta K. Kutty
  • Natalie J. Thornburg
  • Alison Laufer Halpin
  • Alice Guh
  • Sujan Reddy

Best Publications

  • Clinical Practice Guidelines for Clostridium difficile Infection in Adults: 2010 Update by the Society for Healthcare Epidemiology of America (SHEA) and the Infectious Diseases Society of America (IDSA)

    Stuart H. Cohen;Dale N. Gerding;Stuart Johnson;Ciaran P. Kelly

  • Clinical Practice Guidelines for Clostridium difficile Infection in Adults and Children: 2017 Update by the Infectious Diseases Society of America (IDSA) and Society for Healthcare Epidemiology of America (SHEA)

    L Clifford McDonald;Dale N Gerding;Stuart Johnson;Stuart Johnson;Johan S Bakken

  • Burden of Clostridium difficile Infection in the United States

    Fernanda C. Lessa;Yi Mu;Wendy M. Bamberg;Zintars G. Beldavs

  • An epidemic, toxin gene-variant strain of Clostridium difficile.

    L. Clifford McDonald;George E. Killgore;Angela Thompson;Robert C. Owens

  • Toxin production by an emerging strain of Clostridium difficile associated with outbreaks of severe disease in North America and Europe

    Michel Warny;Jacques Pepin;Aiqi Fang;George Killgore

  • Clostridium difficile infection in patients discharged from US short-stay hospitals, 1996-2003.

    L. Clifford McDonald;Maria Owings;Daniel B. Jernigan

  • Recommendations for Surveillance of Clostridium difficile-Associated Disease

    L. Clifford McDonald;Bruno Coignard;Erik Dubberke;Xiaoyan Song

  • Changes in the Epidemiology of Methicillin-Resistant Staphylococcus aureus in Intensive Care Units in US Hospitals, 1992–2003

    R. Monina Klevens;Jonathan R. Edwards;Fred C. Tenover;L. Clifford McDonald

  • Trends in U.S. Burden of Clostridioides difficile Infection and Outcomes.

    Alice Y. Guh;Yi Mu;Lisa G. Winston;Helen Johnston

  • Vital Signs: Epidemiology and Recent Trends in Methicillin-Resistant and in Methicillin-Susceptible Staphylococcus aureus Bloodstream Infections — United States

    Kourtis Ap;Hatfield K;Baggs J;Mu Y

  • Vancomycin-Resistant Staphylococcus aureus in the United States, 2002–2006

    Dawn M. Sievert;Dawn M. Sievert;James T. Rudrik;Jean B. Patel;L. Clifford McDonald

  • Vital signs: carbapenem-resistant Enterobacteriaceae.

    Jesse T. Jacob;Eili Klein;Ramanan Laxminarayan;Zintars Beldavs

  • Multidrug-Resistant Bacterial Infections in U.S. Hospitalized Patients, 2012-2017.

    John A Jernigan;Kelly M Hatfield;Hannah Wolford;Richard E Nelson

  • Current Status of Clostridium difficile Infection Epidemiology

    Fernanda C. Lessa;Carolyn V. Gould;L. Clifford McDonald

  • Epidemiology of community-associated Clostridium difficile infection, 2009 through 2011.

    Amit S. Chitnis;Stacy M. Holzbauer;Ruth M. Belflower;Lisa G. Winston

  • Severe Community-acquired Pneumonia Due to Staphylococcus aureus, 2003–04 Influenza Season

    Jeffrey C. Hageman;Timothy M. Uyeki;John S. Francis;Daniel B. Jernigan

  • Comparison of Seven Techniques for Typing International Epidemic Strains of Clostridium difficile: Restriction Endonuclease Analysis, Pulsed-Field Gel Electrophoresis, PCR-Ribotyping, Multilocus Sequence Typing, Multilocus Variable-Number Tandem-Repeat Analysis, Amplified Fragment Length Polymorphism, and Surface Layer Protein A Gene Sequence Typing

    George Killgore;Angela Thompson;Stuart Johnson;Jon Brazier

  • Vital Signs: Improving Antibiotic Use Among Hospitalized Patients

    Scott Fridkin;James Baggs;Ryan Fagan;Shelley Magill

  • Staphylococcus aureus–associated Skin and Soft Tissue Infections in Ambulatory Care

    Linda F. McCaig;L. Clifford McDonald;Sanjay Mandal;Daniel B. Jernigan

  • Clostridium difficile Infection in Patients Discharged from US

    L. Clifford McDonald;Maria Owings;Daniel B. Jernigan

Frequent Co-Authors

Dale N. Gerding
Dale N. Gerding Veterans Health Administration
John A. Jernigan
John A. Jernigan Centers for Disease Control and Prevention
Monica M. Farley
Monica M. Farley Emory University
Erik R. Dubberke
Erik R. Dubberke Washington University in St. Louis
Brandi Limbago
Brandi Limbago Centers for Disease Control and Prevention
Daniel B. Jernigan
Daniel B. Jernigan Centers for Disease Control and Prevention
Christopher W. Woods
Christopher W. Woods Duke University
Stuart Johnson
Stuart Johnson Loyola University Chicago
Victoria J. Fraser
Victoria J. Fraser Washington University in St. Louis
Natalie J. Thornburg
Natalie J. Thornburg Centers for Disease Control and Prevention

If you think any of the details on this page are incorrect, let us know.

Report an issue

We appreciate your kind effort to assist us to improve this page, it would be helpful providing us with as much detail as possible in the text box below:

Related Online Degrees & Career Pathways

Exploring online degrees can open diverse pathways in the healthcare sector. For those interested in administrative roles, earning a medical coding certification online is a fast and flexible route into medical billing and insurance processing—critical support roles in most healthcare environments.

Many students aim for direct patient care careers. There are cheapest online fnp programs available, which make becoming a Family Nurse Practitioner more accessible and affordable. Similarly, those seeking to become registered nurses may consider affordable nursing programs that blend flexible online courses with required clinical practice.

Advanced practitioners and academic leaders can pursue specialized research or teaching careers with online phd nursing programs. These online opportunities allow professionals to continue working while advancing their qualifications and career prospects.

Whether you're starting your journey or seeking advanced credentials, online degrees offer flexibility, lower costs, and a range of medical career pathways.

Best Scientists Citing L. Clifford McDonald

Trending Scientists

Recently Published Articles