World's Best Scientists 2026 revealed!

D-Index & Metrics

Microbiology

D-Index
65
Citations
19684
World Ranking
2473
National Ranking
214

Patricia A. Bradford 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 Patricia A. Bradford 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: 132 publications — 17th percentile

17% of scientists in this discipline score the same or lower.

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

Patricia A. Bradford 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 Patricia A. Bradford 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: 65 D-Index — 55th percentile

55% of scientists in this discipline score the same or lower.

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

Overview

Patricia A. Bradford is primarily affiliated with AstraZeneca in the United Kingdom. Their research output focuses heavily on the fields of biochemistry, genetics and molecular biology, as well as medicine. Within these broad areas, the scientist has contributed extensively to molecular medicine, pharmacology, applied microbiology and biotechnology, epidemiology, and pollution.

The main topics of their work center around antibiotic resistance in bacteria, antibiotics pharmacokinetics and efficacy, and antibiotic use and resistance. Additional research interests include pneumonia and respiratory infections, pharmaceutical and antibiotic environmental impacts, antimicrobial resistance in Staphylococcus, and bacterial identification and susceptibility testing.

Frequent coauthors in their scholarly collaborations include Gregory G. Stone, Karen Bush, Wright W. Nichols, Mariana Castanheira, and Alita A. Miller.

The scientist has published multiple papers across a variety of prominent journals. Frequent publication venues include the Journal of Antimicrobial Chemotherapy with six papers, Antimicrobial Agents and Chemotherapy with four, JAC-Antimicrobial Resistance with two, ClinMicroNow with two, and Clinical Microbiology Reviews with one.

Selected recent papers authored or coauthored by the scientist include:

  • Zoliflodacin: An Oral Spiropyrimidinetrione Antibiotic for the Treatment of Neisseria gonorrheae, Including Multi-Drug-Resistant Isolates (2020, ACS Infectious Diseases)
  • Consensus on β-Lactamase Nomenclature (2022, Antimicrobial Agents and Chemotherapy)

Other notable papers in the research context include:

  • Epidemiology of β-Lactamase-Producing Pathogens (2020, Clinical Microbiology Reviews)
  • Extended-spectrum β-lactamases: an update on their characteristics, epidemiology and detection (2021, JAC-Antimicrobial Resistance)
  • In vitro activity of sulbactam/durlobactam against clinical isolates of Acinetobacter baumannii collected in China (2020, Journal of Antimicrobial Chemotherapy)

Best Publications

  • Extended-Spectrum β-Lactamases in the 21st Century: Characterization, Epidemiology, and Detection of This Important Resistance Threat

    Patricia A. Bradford

  • β-Lactams and β-Lactamase Inhibitors: An Overview

    Karen Bush;Patricia A. Bradford

  • Epidemiology of β-Lactamase-Producing Pathogens.

    Karen Bush;Patricia A. Bradford

  • Ceftriaxone-resistant salmonella infection acquired by a child from cattle.

    Paul D. Fey;Thomas J. Safranek;Mark E. Rupp;Eileen F. Dunne

  • Multiple antibiotic-resistant Klebsiella and Escherichia coli in nursing homes.

    Janis Wiener;John P. Quinn;Patricia A. Bradford;Richard V. Goering

  • Imipenem resistance in Klebsiella pneumoniae is associated with the combination of ACT-1, a plasmid-mediated AmpC beta-lactamase, and the foss of an outer membrane protein.

    P A Bradford;C Urban;N Mariano;S J Projan

  • Extended-spectrum β-lactamases: an update on their characteristics, epidemiology and detection

    Mariana Castanheira;Patricia J Simner;Patricia A Bradford

  • Emergence of Carbapenem-Resistant Klebsiella Species Possessing the Class A Carbapenem-Hydrolyzing KPC-2 and Inhibitor-Resistant TEM-30 β-Lactamases in New York City

    Patricia A. Bradford;Simona Bratu;Carl Urban;Melissa Visalli

  • Interplay between β-lactamases and new β-lactamase inhibitors.

    Karen Bush;Patricia A. Bradford

  • Efflux-Mediated Resistance to Tigecycline (GAR-936) in Pseudomonas aeruginosa PAO1

    Charles R. Dean;Melissa A. Visalli;Steven J. Projan;Phaik-Eng Sum

  • In vitro antibacterial activities of tigecycline in combination with other antimicrobial agents determined by chequerboard and time-kill kinetic analysis

    Peter J. Petersen;Ponpen Labthavikul;C. Hal Jones;Patricia A. Bradford

  • AdeABC multidrug efflux pump is associated with decreased susceptibility to tigecycline in Acinetobacter calcoaceticus-Acinetobacter baumannii complex.

    Alexey Ruzin;David Keeney;Patricia A. Bradford

  • A novel MATE family efflux pump contributes to the reduced susceptibility of laboratory-derived Staphylococcus aureus mutants to tigecycline.

    Fionnuala McAleese;Peter Petersen;Alexey Ruzin;Paul M. Dunman

  • Influence of Transcriptional Activator RamA on Expression of Multidrug Efflux Pump AcrAB and Tigecycline Susceptibility in Klebsiella pneumoniae

    Alexey Ruzin;Melissa A. Visalli;David Keeney;Patricia A. Bradford

  • In vitro and in vivo activities of tigecycline (GAR-936), daptomycin, and comparative antimicrobial agents against glycopeptide-intermediate Staphylococcus aureus and other resistant gram-positive pathogens

    Peter J. Petersen;Patricia A. Bradford;William J. Weiss;Timothy M. Murphy

  • Functional, Biophysical, and Structural Bases for Antibacterial Activity of Tigecycline

    Matthew W. Olson;Alexey Ruzin;Eric Feyfant;Thomas S. Rush

  • Multiyear, Multinational Survey of the Incidence and Global Distribution of Metallo-β-Lactamase-Producing Enterobacteriaceae and Pseudomonas aeruginosa.

    Krystyna M. Kazmierczak;Sharon Rabine;Meredith Hackel;Robert E. McLaughlin

  • AcrAB Multidrug Efflux Pump Is Associated with Reduced Levels of Susceptibility to Tigecycline (GAR-936) in Proteus mirabilis

    Melissa A. Visalli;Ellen Murphy;Steven J. Projan;Patricia A. Bradford

  • In Vitro Activity of Aztreonam-Avibactam against Enterobacteriaceae and Pseudomonas aeruginosa Isolated by Clinical Laboratories in 40 Countries from 2012 to 2015.

    James A. Karlowsky;Krystyna M. Kazmierczak;Boudewijn L. M. de Jonge;Meredith A. Hackel

  • MarA-mediated overexpression of the AcrAB efflux pump results in decreased susceptibility to tigecycline in Escherichia coli

    David Keeney;Alexey Ruzin;Fionnuala McAleese;Ellen Murphy

  • CTX-M-5, a Novel Cefotaxime-Hydrolyzing β-Lactamase from an Outbreak of Salmonella typhimurium in Latvia

    Patricia A. Bradford;Youjun Yang;Daniel Sahm;Ilze Grope

Frequent Co-Authors

Steven J. Projan
Steven J. Projan Rutgers, The State University of New Jersey
Karen Bush
Karen Bush Indiana University
Gisele Peirano
Gisele Peirano University of Calgary
Mary Motyl
Mary Motyl MSD (United States)
Johann D. D. Pitout
Johann D. D. Pitout University of Calgary
James J. Rahal
James J. Rahal New York Hospital Queens
Tarek S. Mansour
Tarek S. Mansour Pfizer (United States)
Christine C. Sanders
Christine C. Sanders Creighton University
Mariana Castanheira
Mariana Castanheira JMI Laboratories
Barry N. Kreiswirth
Barry N. Kreiswirth Center for Discovery and Innovation

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