World's Best Scientists 2026 revealed!

D-Index & Metrics

Microbiology

D-Index
80
Citations
29015
World Ranking
1142
National Ranking
101

Medicine

D-Index
83
Citations
30121
World Ranking
15466
National Ranking
1420

Margaret Johnson 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 Margaret Johnson 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: 265 scientists 155–164 publications: 264 scientists 165–174 publications: 253 scientists 175–184 publications: 276 scientists 185–194 publications: 190 scientists 195–204 publications: 234 scientists 205–214 publications: 208 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: 336 publications — 83rd percentile

83% of scientists in this discipline score the same or lower.

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

Margaret Johnson 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 Margaret Johnson 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: 112 scientists 57 D-Index: 136 scientists 58 D-Index: 162 scientists 59 D-Index: 151 scientists 60 D-Index: 139 scientists 61 D-Index: 123 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: 94 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: 80 D-Index — 80th percentile

80% of scientists in this discipline score the same or lower.

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

Overview

Margaret Johnson is affiliated with The Royal Free Hospital in the United Kingdom. Their academic and professional work is connected to this institution, reflecting a clinical or research focus likely centered around healthcare or medical sciences.

There are no recent papers, frequent co-authors, or specific publication venues listed for Margaret Johnson in the available data. Similarly, there are no recorded book publications or detailed information about main fields, subfields, or specific research topics related to their work.

The absence of published papers, co-author collaborations, and specific fields or topics indicates that publicly accessible bibliometric or research output data on Margaret Johnson is limited or not present in the provided dataset.

There are no awards or distinctions recorded for Margaret Johnson, and the data confirms that they are currently living.

As such, the profile relies on the confirmed affiliation and the factual absence of additional bibliographic and research details, presenting a neutral overview of Margaret Johnson's professional identity within the research and academic community at The Royal Free Hospital.

Best Publications

  • Circulating microRNAs in sera correlate with soluble biomarkers of immune activation but do not predict mortality in ART treated individuals with HIV-1 infection : a case control study

    Daniel D. Murray;Kazuo Suzuki;Matthew Law;Jonel Trebicka

  • Comparison of first-line antiretroviral therapy with regimens including nevirapine, efavirenz, or both drugs, plus stavudine and lamivudine: a randomised open-label trial, the 2NN Study

    F van Leth;P Phanuphak;K Ruxrungtham;E Baraldi

  • Lopinavir–Ritonavir versus Nelfinavir for the Initial Treatment of HIV Infection

    Sharon Walmsley;Barry Bernstein;Martin King;José Arribas

  • The implications of using an inappropriate reference gene for real-time reverse transcription PCR data normalization

    K. Dheda;J.F. Huggett;J.S. Chang;L.U. Kim

  • Efficacy and safety of TMC125 (etravirine) in treatment-experienced HIV-1-infected patients in DUET-1: 24-week results from a randomised, double-blind, placebo-controlled trial.

    Adriano Lazzarin;Thomas Campbell;Bonaventura Clotet;Margaret Johnson

  • Impact on life expectancy of HIV-1 positive individuals of CD4+ cell count and viral load response to antiretroviral therapy

    Margaret T. May;Mark Gompels;Valerie Delpech;Kholoud Porter

  • Efficacy of short-term monotherapy with maraviroc, a new CCR5 antagonist, in patients infected with HIV-1.

    Gerd Fätkenheuer;Anton L Pozniak;Margaret A Johnson;Andreas Plettenberg

  • Late presentation of HIV infection: a consensus definition

    A Antinori;T Coenen;D Costagiola;N Dedes

  • Rilpivirine versus efavirenz with two background nucleoside or nucleotide reverse transcriptase inhibitors in treatment-naive adults infected with HIV-1 (THRIVE): a phase 3, randomised, non-inferiority trial.

    Calvin J Cohen;Jaime Andrade-Villanueva;Bonaventura Clotet;Jan Fourie

  • Impact of late diagnosis and treatment on life expectancy in people with HIV-1: UK Collaborative HIV Cohort (UK CHIC) Study

    Margaret T May;Mark Gompels;Valerie Delpech;Kholoud Porter

  • British HIV Association guidelines for the treatment of HIV-1-positive adults with antiretroviral therapy 2012

    Ian Williams;Duncan Churchill;Jane Anderson;Marta Boffito

  • Paradoxical reactions during tuberculosis treatment in patients with and without HIV co-infection

    R A M Breen;C J Smith;H Bettinson;S Dart

  • Durable efficacy of tipranavir-ritonavir in combination with an optimised background regimen of antiretroviral drugs for treatment-experienced HIV-1-infected patients at 48 weeks in the Randomized Evaluation of Strategic Intervention in multi-drug reSistant patients with Tipranavir (RESIST) studies: an analysis of combined data from two randomised open-label trials

    Charles B Hicks;Pedro Cahn;David A Cooper;Sharon L Walmsley

  • Rapid decline in detectability of HIV-1 drug resistance mutations after stopping therapy.

    Helen L. Devereux;Mike Youle;Margaret A. Johnson;Clive Loveday

  • Lung Remodeling in Pulmonary Tuberculosis

    Keertan Dheda;Helen Booth;Jim F. Huggett;Margaret A. Johnson

  • Atazanavir plus ritonavir or saquinavir, and lopinavir/ritonavir in patients experiencing multiple virological failures.

    Margaret Johnson;Beatriz Grinsztejn;Claudia Rodriguez;Jeffrey Coco

  • Tenofovir-associated renal and bone toxicity

    Clare L N Woodward;A M Hall;I G Williams;S Madge

  • Recreational drug use, polydrug use, and sexual behaviour in HIV-diagnosed men who have sex with men in the UK: results from the cross-sectional ASTRA study

    Marina Daskalopoulou;Alison Rodger;Andrew N Phillips;Lorraine Sherr

  • Reasons for modification and discontinuation of antiretrovirals: results from a single treatment centre.

    Amanda Mocroft;Michael Youle;Antonia Moore;Caroline A. Sabin

  • Influence of Age on CD4 Cell Recovery in Human Immunodeficiency Virus–Infected Patients Receiving Highly Active Antiretroviral Therapy: Evidence from the EuroSIDA Study

    Jean-Paul Viard;Amanda Mocroft;Antonio Chiesi;Ole Kirk

Frequent Co-Authors

Caroline Sabin
Caroline Sabin University College London
Andrew N. Phillips
Andrew N. Phillips University College London
Marc Lipman
Marc Lipman Royal Free London NHS Foundation Trust
Martin Fisher
Martin Fisher University of Sussex
Amanda Mocroft
Amanda Mocroft University College London
Paul D. Griffiths
Paul D. Griffiths University College London
Frank A. Post
Frank A. Post King's College London
Brian Gazzard
Brian Gazzard St Bartholomew's Hospital
Richard Gilson
Richard Gilson University College London
Clifford Leen
Clifford Leen Western General Hospital

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