World's Best Scientists 2026 revealed!

D-Index & Metrics

Microbiology

D-Index
83
Citations
23688
World Ranking
998
National Ranking
456

Marcus A. Horwitz 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 Marcus A. Horwitz 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: 176 publications — 39th percentile

39% of scientists in this discipline score the same or lower.

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

Marcus A. Horwitz 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 Marcus A. Horwitz 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: 83 D-Index — 83rd percentile

83% 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

  • 1999 - Fellow of the American Association for the Advancement of Science (AAAS)
  • 1991 - Oswald Avery Award, Infectious Diseases Society of America

Overview

Marcus A. Horwitz is affiliated with the University of California, Los Angeles in the United States. Their research spans multiple areas within medicine and biochemistry, genetics, and molecular biology, focusing particularly on infectious diseases and molecular biology subfields.

The scientific work of Marcus A. Horwitz covers key topics including:

  • Bacillus and Francisella bacterial research
  • Tuberculosis research and epidemiology
  • SARS-CoV-2 and COVID-19 research
  • Viral infections and outbreaks research
  • Mycobacterium research and diagnosis
  • Immune responses and vaccinations
  • Yersinia bacterium, plague, and ectoparasites research

Among their recent papers are:

  • "Replicating bacterium-vectored vaccine expressing SARS-CoV-2 Membrane and Nucleocapsid proteins protects against severe COVID-19-like disease in hamsters," 2021, published in npj Vaccines
  • "Early innate and adaptive immune perturbations determine long-term severity of chronic virus and Mycobacterium tuberculosis coinfection," 2021, published in Immunity
  • "Oral Administration of Universal Bacterium-Vectored Nucleocapsid-Expressing COVID-19 Vaccine is Efficacious in Hamsters," 2023, published in Microbiology Spectrum
  • "Listeria-vectored multi-antigenic tuberculosis vaccine protects C57BL/6 and BALB/c mice and guinea pigs against Mycobacterium tuberculosis challenge," 2022, published in Communications Biology
  • "Efficacy and safety of an innovative short-course regimen containing clofazimine for treatment of drug-susceptible tuberculosis: a clinical trial," 2023, published in Emerging Microbes & Infections

Frequent coauthors collaborating with Marcus A. Horwitz include:

  • Saša Masleša-Galić
  • Qingmei Jia
  • Bai-Yu Lee
  • Daniel L. Clemens
  • Richard A. Bowen

Common publication venues for their work are:

  • bioRxiv (Cold Spring Harbor Laboratory)
  • mBio
  • Human Vaccines & Immunotherapeutics
  • npj Vaccines
  • Immunity

Their primary fields of study include medicine with 24 publications and biochemistry, genetics, and molecular biology with 14 publications. In terms of subfields, their focus is on infectious diseases (16 publications), molecular biology (10 publications), epidemiology (6 publications), immunology (5 publications), and genetics (3 publications).

Marcus A. Horwitz has been recognized with professional awards such as the Fellow of the American Association for the Advancement of Science (AAAS) in 1999 and the Oswald Avery Award from the Infectious Diseases Society of America in 1991.

Best Publications

  • Characterization of the Mycobacterium tuberculosis phagosome and evidence that phagosomal maturation is inhibited.

    D L Clemens;M A Horwitz

  • The Legionnaires' disease bacterium (Legionella pneumophila) inhibits phagosome-lysosome fusion in human monocytes.

    M A Horwitz

  • Legionnaires' Disease Bacterium (Legionella pneumophila) Multiplies Intracellularly in Human Monocytes

    Marcus A. Horwitz;Samuel C. Silverstein

  • Formation of a novel phagosome by the Legionnaires' disease bacterium (Legionella pneumophila) in human monocytes.

    Marcus A. Horwitz

  • Phagocytosis of Mycobacterium tuberculosis is mediated by human monocyte complement receptors and complement component C3.

    L S Schlesinger;C G Bellinger-Kawahara;N R Payne;M A Horwitz

  • Recombinant bacillus Calmette–Guérin (BCG) vaccines expressing the Mycobacterium tuberculosis 30-kDa major secretory protein induce greater protective immunity against tuberculosis than conventional BCG vaccines in a highly susceptible animal model

    Marcus A. Horwitz;Günter Harth;Barbara Jane Dillon;Saša Masleša-Galić

  • Protective immunity against tuberculosis induced by vaccination with major extracellular proteins of Mycobacterium tuberculosis.

    Marcus A. Horwitz;Byong-Wha Esther Lee;Barbara Jane Dillon;Gunter Harth

  • Legionella pneumophila inhibits acidification of its phagosome in human monocytes.

    M A Horwitz;F R Maxfield

  • Virulent and Avirulent Strains of Francisella tularensis Prevent Acidification and Maturation of Their Phagosomes and Escape into the Cytoplasm in Human Macrophages

    Daniel L. Clemens;Bai-Yu Lee;Marcus A. Horwitz

  • Phagocytosis of the legionnaires' disease bacterium (legionella pneumophila) occurs by a novel mechanism: Engulfment within a Pseudopod coil

    Marcus A. Horwitz

  • The Mycobacterium tuberculosis phagosome interacts with early endosomes and is accessible to exogenously administered transferrin.

    Daniel L. Clemens;Marcus A. Horwitz

  • Identification of a Legionella pneumophila locus required for intracellular multiplication in human macrophages.

    Andrea Marra;Steven J. Blander;Marcus A. Horwitz;Howard A. Shuman

  • Phagocytosis of Legionella pneumophila is mediated by human monocyte complement receptors.

    N R Payne;M A Horwitz

  • Immunization with extracellular proteins of Mycobacterium tuberculosis induces cell-mediated immune responses and substantial protective immunity in a guinea pig model of pulmonary tuberculosis.

    P G Pal;M A Horwitz

  • Influence of the Escherichia coli capsule on complement fixation and on phagocytosis and killing by human phagocytes.

    Marcus A. Horwitz;Samuel C. Silverstein

  • Interaction between the legionnaires' disease bacterium (Legionella pneumophila) and human alveolar macrophages. Influence of antibody, lymphokines, and hydrocortisone.

    T W Nash;D M Libby;M A Horwitz

  • Francisella tularensis enters macrophages via a novel process involving pseudopod loops.

    Daniel L. Clemens;Bai-Yu Lee;Marcus A. Horwitz

  • A New Vaccine against Tuberculosis Affords Greater Survival after Challenge than the Current Vaccine in the Guinea Pig Model of Pulmonary Tuberculosis

    Marcus A Horwitz;Guenter Harth

  • Exochelins of Mycobacterium tuberculosis remove iron from human iron-binding proteins and donate iron to mycobactins in the M. tuberculosis cell wall.

    J Gobin;M A Horwitz

  • Intravital Imaging Reveals Limited Antigen Presentation and T Cell Effector Function in Mycobacterial Granulomas

    Jackson G. Egen;Antonio Gigliotti Rothfuchs;Carl G. Feng;Marcus A. Horwitz

  • The cutaneous infiltrates of leprosy: cellular characteristics and the predominant T-cell phenotypes.

    Van Voorhis Wc;Kaplan G;Sarno En;Horwitz Ma

Frequent Co-Authors

Jeffrey I. Zink
Jeffrey I. Zink University of California, Los Angeles
Bradford W. Gibson
Bradford W. Gibson Buck Institute for Research on Aging
Samuel C. Silverstein
Samuel C. Silverstein Columbia University
Richard A. Bowen
Richard A. Bowen Colorado State University
David G. Brooks
David G. Brooks University of Toronto
Howard A. Shuman
Howard A. Shuman University of Chicago
Zanvil A. Cohn
Zanvil A. Cohn Rockefeller University
Chih-Ming Ho
Chih-Ming Ho University of California, Los Angeles
Andre E. Nel
Andre E. Nel University of California, Los Angeles
Paul C. Zamecnik
Paul C. Zamecnik Harvard University

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