World's Best Scientists 2026 revealed!

D-Index & Metrics

Microbiology

D-Index
57
Citations
21132
World Ranking
3522
National Ranking
310

Mark Toleman 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 Mark Toleman 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: 138 publications — 20th percentile

20% of scientists in this discipline score the same or lower.

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

Mark Toleman 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 Mark Toleman 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: 57 D-Index — 36th percentile

36% of scientists in this discipline score the same or lower.

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

Overview

What is he best known for?

The fields of study he is best known for:

  • Bacteria
  • Gene
  • Statistics

His primary scientific interests are in Microbiology, Genetics, Gene, Integron and Plasmid. The study incorporates disciplines such as Pseudomonas aeruginosa and Klebsiella pneumoniae, New Delhi metallo-beta-lactamase 1 in addition to Microbiology. In his study, Aztreonam is strongly linked to Gram-negative bacteria, which falls under the umbrella field of New Delhi metallo-beta-lactamase 1.

His Integron study deals with Genetic analysis intersecting with Genotype and Polymerase chain reaction. His research in Plasmid intersects with topics in Sulfamethoxazole, Stenotrophomonas maltophilia, Transposition, Escherichia coli and Insertion element. His Antibacterial agent study combines topics from a wide range of disciplines, such as Antibiotic resistance, Imipenem and Sequence analysis.

His most cited work include:

  • Emergence of a new antibiotic resistance mechanism in India, Pakistan, and the UK: a molecular, biological, and epidemiological study (2066 citations)
  • Characterization of a New Metallo-β-Lactamase Gene, blaNDM-1, and a Novel Erythromycin Esterase Gene Carried on a Unique Genetic Structure in Klebsiella pneumoniae Sequence Type 14 from India (1621 citations)
  • Metallo-β-Lactamases: the Quiet before the Storm? (1187 citations)

What are the main themes of his work throughout his whole career to date?

Mark Toleman mainly focuses on Microbiology, Knowledge management, IT service management, Genetics and Plasmid. His specific area of interest is Microbiology, where Mark Toleman studies Integron. His Knowledge management research is multidisciplinary, relying on both Service, Engineering ethics, Information system and Agile software development.

Mark Toleman has included themes like Decision support system and Balanced scorecard, Process management in his IT service management study. Gene, Multilocus sequence typing and Sequence analysis are among the areas of Genetics where Mark Toleman concentrates his study. Mark Toleman has researched Plasmid in several fields, including Typing and Pulsed-field gel electrophoresis.

He most often published in these fields:

  • Microbiology (26.99%)
  • Knowledge management (18.34%)
  • IT service management (12.46%)

What were the highlights of his more recent work (between 2013-2021)?

  • Microbiology (26.99%)
  • Plasmid (10.73%)
  • IT service management (12.46%)

In recent papers he was focusing on the following fields of study:

His scientific interests lie mostly in Microbiology, Plasmid, IT service management, Escherichia coli and Knowledge management. His work in the fields of Antibiotic resistance overlaps with other areas such as Carriage. His Plasmid study is concerned with the field of Gene as a whole.

His IT service management study combines topics from a wide range of disciplines, such as Decision support system, Design science research and Engineering management. His work carried out in the field of Escherichia coli brings together such families of science as Bacteria, Veterinary medicine, Livestock, Drug resistance and Virulence. His research integrates issues of Phenomenon and Service in his study of Knowledge management.

Between 2013 and 2021, his most popular works were:

  • World Health Organization Ranking of Antimicrobials According to Their Importance in Human Medicine: A Critical Step for Developing Risk Management Strategies to Control Antimicrobial Resistance From Food Animal Production (107 citations)
  • First detection of extended-spectrum cephalosporin- and fluoroquinolone-resistant Escherichia coli in Australian food-producing animals (64 citations)
  • Extended-spectrum β-lactamase-producing Escherichia coli in human-derived and foodchain-derived samples from England, Wales, and Scotland: an epidemiological surveillance and typing study (48 citations)

In his most recent research, the most cited papers focused on:

  • Bacteria
  • Statistics
  • Gene

Mark Toleman focuses on Microbiology, Multilocus sequence typing, Plasmid, Escherichia coli and Enterobacteriaceae. The Microbiology study combines topics in areas such as Klebsiella pneumoniae and Acinetobacter baumannii. His Plasmid study is concerned with the larger field of Genetics.

Particularly relevant to Gene is his body of work in Genetics. His Escherichia coli study incorporates themes from Bacteria, Veterinary medicine, Livestock, Typing and Drug resistance. His work in Enterobacteriaceae addresses subjects such as Acinetobacter, which are connected to disciplines such as Acinetobacter pittii.

Best Publications

  • Emergence of a new antibiotic resistance mechanism in India, Pakistan, and the UK: a molecular, biological, and epidemiological study

    Karthikeyan K. Kumarasamy;Mark Alexander Howard Toleman;Timothy Rutland Walsh;Jay Bagaria

  • Characterization of a New Metallo-β-Lactamase Gene, blaNDM-1, and a Novel Erythromycin Esterase Gene Carried on a Unique Genetic Structure in Klebsiella pneumoniae Sequence Type 14 from India

    DongEun Yong;Mark Alexander Howard Toleman;Christian G. Giske;Hyun S. Cho

  • Metallo-β-Lactamases: the Quiet before the Storm?

    Timothy R. Walsh;Mark A. Toleman;Laurent Poirel;Patrice Nordmann

  • Dissemination of NDM-1 positive bacteria in the New Delhi environment and its implications for human health: an environmental point prevalence study

    Timothy Rutland Walsh;Timothy Rutland Walsh;Janis Lesley Weeks;David M. Livermore;Mark Alexander Howard Toleman

  • ISCR Elements: Novel Gene-Capturing Systems of the 21st Century?

    Mark A. Toleman;Peter M. Bennett;Timothy R. Walsh

  • Characterization of a new metallo-beta-lactamase gene, bla(NDM-1), and a novel erythromycin esterase gene carried on a unique genetic structure in Klebsiella pneumoniae sequence type 14 from India

    Dongeun Yong;Mark A. Toleman;Christian G. Giske;Hyun S. Cho

  • Molecular characterization of SPM-1, a novel metallo-β-lactamase isolated in Latin America: report from the SENTRY antimicrobial surveillance programme

    Mark A. Toleman;Alan M. Simm;Tanya A. Murphy;Ana C. Gales

  • Molecular characterization of a beta-lactamase gene, blaGIM-1, encoding a new subclass of metallo-beta-lactamase.

    Mariana Castanheira;Mark A. Toleman;Ronald N. Jones;Franz J. Schmidt

  • How To Detect NDM-1 Producers

    Patrice Nordmann;Laurent Poirel;Amelie Carrer;Mark Alexander Howard Toleman

  • Does broad-spectrum beta-lactam resistance due to NDM-1 herald the end of the antibiotic era for treatment of infections caused by Gram-negative bacteria?

    Patrice Nordmann;Laurent Poirel;Mark Alexander Howard Toleman;Timothy Rutland Walsh

  • World Health Organization Ranking of Antimicrobials According to Their Importance in Human Medicine: A Critical Step for Developing Risk Management Strategies to Control Antimicrobial Resistance From Food Animal Production

    Peter C. Collignon;Peter C. Collignon;John M. Conly;Antoine Andremont;Scott A. McEwen

  • Global Emergence of Trimethoprim/Sulfamethoxazole Resistance in Stenotrophomonas maltophilia Mediated by Acquisition of sul Genes

    Mark Alexander Howard Toleman;Peter M. Bennett;David M. C. Bennett;Ronald N. Jones

  • Diverse Sequence Types of Klebsiella pneumoniae Contribute to the Dissemination of blaNDM-1 in India, Sweden, and the United Kingdom

    Christian G. Giske;Inga Fröding;Chowdhury Mehedi Hasan;Agata Turlej-Rogacka

  • Spread of extensively resistant VIM-2-positive ST235 Pseudomonas aeruginosa in Belarus, Kazakhstan, and Russia: a longitudinal epidemiological and clinical study

    Mikhail V. Edelstein;Elena N. Skleenova;Oksana V. Shevchenko;Jimson W. D'souza

  • Extended-spectrum β-lactamase-producing Escherichia coli in human-derived and foodchain-derived samples from England, Wales, and Scotland: an epidemiological surveillance and typing study

    Michaela J Day;Katie L Hopkins;David W Wareham;Mark A Toleman

  • The emergence of pan-resistant Gram-negative pathogens merits a rapid global political response

    Timothy Rutland Walsh;Timothy Rutland Walsh;Mark Alexander Howard Toleman

  • Combinatorial events of insertion sequences and ICE in Gram-negative bacteria.

    Mark Alexander Howard Toleman;Timothy Rutland Walsh

  • blaVIM-7, an Evolutionarily Distinct Metallo-β-Lactamase Gene in a Pseudomonas aeruginosa Isolate from the United States

    Mark A. Toleman;Kenneth Rolston;Ronald N. Jones;Timothy R. Walsh

  • Molecular Epidemiology of Metallo-β-Lactamase-Producing Pseudomonas aeruginosa Isolates from Norway and Sweden Shows Import of International Clones and Local Clonal Expansion

    Ørjan Samuelsen;Mark A. Toleman;Arnfinn Sundsfjord;Arnfinn Sundsfjord;Johan Rydberg

  • The variable P5 proteins of typeable and non-typeable Haemophilus influenzae target human CEACAM1.

    Darryl J. Hill;Mark A. Toleman;Debbie J. Evans;Silvia Villullas

Frequent Co-Authors

Timothy R. Walsh
Timothy R. Walsh University of Oxford
Ronald N. Jones
Ronald N. Jones JMI Laboratories
David M. Livermore
David M. Livermore University of East Anglia
Arnfinn Sundsfjord
Arnfinn Sundsfjord University of Tromsø - The Arctic University of Norway
Christian G. Giske
Christian G. Giske Karolinska University Hospital
Patrice Nordmann
Patrice Nordmann University of Fribourg
Peter M. Bennett
Peter M. Bennett University of Bristol
Laurent Poirel
Laurent Poirel University of Fribourg
Ørjan Samuelsen
Ørjan Samuelsen University Hospital of North Norway
Ana C. Gales
Ana C. Gales Federal University of Sao Paulo

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Related Online Degrees & Career Pathways

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