World's Best Scientists 2026 revealed!
Roberto M. La Ragione

Roberto M. La Ragione

D-Index & Metrics

Microbiology

D-Index
55
Citations
10243
World Ranking
3836
National Ranking
342

Roberto M. La Ragione 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 Roberto M. La Ragione 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: 281 publications — 73rd percentile

73% of scientists in this discipline score the same or lower.

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

Roberto M. La Ragione 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 Roberto M. La Ragione 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: 55 D-Index — 32nd percentile

32% of scientists in this discipline score the same or lower.

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

Overview

Roberto M. La Ragione is affiliated with the University of Surrey in the United Kingdom. Their research spans multiple fields related to biochemistry, genetics, and molecular biology, with 126 publications in this area, as well as medicine, contributing 95 publications. The subfields of study that most frequently characterize their work include molecular biology, infectious diseases, molecular medicine, food science, and endocrinology.

The researcher has explored several key topics, including:

  • Antibiotic resistance in bacteria
  • Salmonella and Campylobacter epidemiology
  • Gut microbiota and health
  • Viral gastroenteritis research and epidemiology
  • Bacterial identification and susceptibility testing
  • Escherichia coli research studies
  • Zoonotic diseases and public health

Several recent papers exemplify the scope of their work:

  • "Extensive microbial diversity within the chicken gut microbiome revealed by metagenomics and culture," 2021, published in PeerJ
  • "The Avian Pathogenic Escherichia coli (APEC) pathotype is comprised of multiple distinct, independent genotypes," 2021, published in Avian Pathology
  • "Knowledge, Attitudes and Practices of Veterinarians Towards Antimicrobial Resistance and Stewardship in Nigeria," 2020, published in Antibiotics
  • "Indications for the use of highest priority critically important antimicrobials in the veterinary sector," 2020, published in Journal of Antimicrobial Chemotherapy
  • "Artificial Intelligence-Assisted Loop Mediated Isothermal Amplification (AI-LAMP) for Rapid Detection of SARS-CoV-2," 2020, published in Viruses

The scientist frequently collaborates with a core group of co-authors including Aurore Poirier, Jai W. Mehat, Arnoud H. M. van Vliet, Marwa M. Hassan, and Jennifer Cantlay. These partnerships have contributed to a breadth of publications and multidisciplinary research.

Roberto M. La Ragione's publications appear regularly in venues such as Zenodo (CERN European Organization for Nuclear Research), bioRxiv (Cold Spring Harbor Laboratory), Journal of Medical Microbiology, Antibiotics, and Veterinary Record. Among these, Zenodo hosts the majority of their work.

Best Publications

  • Screening for Bacillus Isolates in the Broiler Gastrointestinal Tract

    Teresa M. Barbosa;Cláudia R. Serra;Roberto M. La Ragione;Martin J. Woodward

  • Competitive exclusion by Bacillus subtilis spores of Salmonella enterica serotype Enteritidis and Clostridium perfringens in young chickens.

    Roberto M La Ragione;Martin J Woodward

  • In vivo characterization of Lactobacillus johnsonii FI9785 for use as a defined competitive exclusion agent against bacterial pathogens in poultry

    R. M. La Ragione;A. Narbad;M. J. Gasson;Martin J. Woodward

  • The AcrAB-TolC efflux system of Salmonella enterica serovar Typhimurium plays a role in pathogenesis.

    Anthony M. Buckley;Mark A. Webber;Sue Cooles;Luke P. Randall

  • Bacillus subtilis spores competitively exclude Escherichia coli O78:K80 in poultry.

    R M La Ragione;G Casula;S M Cutting;M J Woodward

  • Virulotyping and Antimicrobial Resistance Typing of Salmonella enterica Serovars Relevant to Human Health in Europe

    Stephan Huehn;Roberto M. La Ragione;Muna Anjum;Mark Saunders

  • Virulence factors of Escherichia coli serotypes associated with avian colisepticaemia

    R. M. La Ragione;Martin J. Woodward

  • A new method for the experimental production of necrotic enteritis and its use for studies on the relationships between necrotic enteritis, coccidiosis and anticoccidial vaccination of chickens

    R. B. Williams;R. N. Marshall;R. M. La Ragione;J. Catchpole

  • Extensive microbial diversity within the chicken gut microbiome revealed by metagenomics and culture.

    Rachel Gilroy;Anuradha Ravi;Maria Getino;Isabella Pursley

  • Bacillus subtilis spores germinate in the chicken gastrointestinal tract.

    Stephen T. Cartman;Roberto M. La Ragione;Martin J. Woodward

  • An investigation into the pathogenic properties of Escherichia coli strains BLR, BL21, DH5α and EQ1

    H. Chart;H. R. Smith;R. M. La Ragione;Martin J. Woodward

  • An investigation of the expression and adhesin function of H7 flagella in the interaction of Escherichia coli O157 : H7 with bovine intestinal epithelium.

    A. Mahajan;C. G. Currie;S. Mackie;J. Tree

  • Fecal Carriage and Shedding Density of CTX-M Extended-Spectrum β-Lactamase-Producing Escherichia coli in Cattle, Chickens, and Pigs: Implications for Environmental Contamination and Food Production

    R. A. Horton;L. P. Randall;E. L. Snary;H. Cockrem

  • Immunostimulatory activity of Bacillus spores

    Jen-Min Huang;Roberto M. La Ragione;Alejandro Nunez;Simon M. Cutting

  • Lack of AcrB Efflux Function Confers Loss of Virulence on Salmonella enterica Serovar Typhimurium

    Xuan Wang-Kan;Jessica M.A. Blair;Barbara Chirullo;Jonathan Betts

  • Escherichia coli O157:H7 colonization in small domestic ruminants

    Roberto M. La Ragione;Angus Best;Martin J. Woodward;Andrew D. Wales

  • Host-microbiome interactions in human type 2 diabetes following prebiotic fibre (galacto-oligosaccharide) intake.

    Camilla Pedersen;Edith Gallagher;Felicity Horton;Richard J. Ellis

  • Functional Characterization of Clostridium difficile Spore Coat Proteins.

    Patima Permpoonpattana;Jutarop Phetcharaburanin;Anna Mikelsone;Marcin Dembek

  • The role of fimbriae and flagella in the colonization, invasion and persistence of Escherichia coli O78:K80 in the day-old-chick model.

    R. M. La Ragione;A. R. Sayers;Martin J. Woodward

  • Mutation of toxB and a truncated version of the efa-1 gene in Escherichia coli O157:H7 influences the expression and secretion of locus of enterocyte effacement-encoded proteins but not intestinal colonization in calves or sheep.

    Mark P. Stevens;Andrew J. Roe;Isabella Vlisidou;Pauline M. van Diemen

  • A mixture containing galactooligosaccharide, produced by the enzymic activity of Bifidobacterium bifidum, reduces Salmonella enterica serovar Typhimurium infection in mice.

    Laura E. J. Searle;Angus Best;Alejandro Nunez;Francisco J. Salguero

Frequent Co-Authors

Martin J. Woodward
Martin J. Woodward University of Reading
Angus I. Best
Angus I. Best National Oceanography Centre
Arnoud H. M. van Vliet
Arnoud H. M. van Vliet University of Surrey
Mark P. Stevens
Mark P. Stevens University of Edinburgh
Andrew Wales
Andrew Wales University of Surrey
David L. Gally
David L. Gally University of Edinburgh
Gad Frankel
Gad Frankel Imperial College London
Anvar A. Zakhidov
Anvar A. Zakhidov The University of Texas at Dallas
Glenn R. Gibson
Glenn R. Gibson University of Reading
Muna F. Anjum
Muna F. Anjum Government of the United Kingdom

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

For students interested in microbiology, exploring related online degrees can open doors to diverse and rewarding career opportunities. Health information management is one such pathway, combining healthcare knowledge with data management skills. Those curious about this field can learn more about the health information manager salary and career prospects to understand its growth potential.

Accreditation ensures quality education, especially in specialized fields. Students seeking flexible study options may consider a cahiim accredited health information management degree online, which meets rigorous standards and prepares graduates for industry certification.

Alternatively, accelerated programs like a medical billing and coding certificate online accelerated help learners quickly gain specialized skills, making them job-ready in a short time frame. These certificates often serve as stepping stones into the healthcare administration sector.

For those aiming for higher-paying roles, exploring medical degrees online that pay well can provide a clear pathway. Various clinical and allied health programs are now available virtually, allowing students to advance their careers while maintaining flexibility.

Best Scientists Citing Roberto M. La Ragione

Trending Scientists

Recently Published Articles