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Roberto M. La Ragione

Roberto M. La Ragione

D-Index & Metrics

Discipline name D-Index World Ranking Current World Ranking National Ranking Current National Ranking Publications Citations
Microbiology 55 3839 3526 342 323 281 10243

Roberto M. La Ragione publications per year

The chart shows the history of publications by Roberto M. La Ragione between 1996 and 2026, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. Roberto M. La Ragione published across 31 years, from 1996 to 2026, averaging 12.2 papers a year. Output peaked at 43 publications in 2022. 19 of the 377 publications appeared in the last two years.

No. of publications
10 20 30 40
Bar chart. Horizontal axis: year, 1996 to 2026. Vertical axis: number of publications, 0 to 43. Peak 43 publications in 2022. 1996: 1 publication 1997: 1 publication 1998: 0 publications 1999: 2 publications 2000: 3 publications 2001: 4 publications 2002: 3 publications 2003: 7 publications 2004: 7 publications 2005: 11 publications 2006: 9 publications 2007: 9 publications 2008: 10 publications 2009: 13 publications 2010: 9 publications 2011: 8 publications 2012: 6 publications 2013: 9 publications 2014: 16 publications 2015: 11 publications 2016: 17 publications 2017: 11 publications 2018: 10 publications 2019: 20 publications 2020: 28 publications 2021: 34 publications 2022: 43 publications 2023: 35 publications 2024: 21 publications 2025: 17 publications 2026: 2 publications
1996 2026

377 publications in total across all disciplines

View publications per year as a table
Roberto M. La Ragione: publications per year, 1996 to 2026
Year Publications
1996 1
1997 1
1998 0
1999 2
2000 3
2001 4
2002 3
2003 7
2004 7
2005 11
2006 9
2007 9
2008 10
2009 13
2010 9
2011 8
2012 6
2013 9
2014 16
2015 11
2016 17
2017 11
2018 10
2019 20
2020 28
2021 34
2022 43
2023 35
2024 21
2025 17
2026 2
Total 377
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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.

No. of scientists
50 100 150 200 250
Bar chart with 64 bars. Horizontal axis: publications, 55–64 to 679+. Vertical axis: number of scientists, 0 to 288. Most scientists, 288, have 135–144 publications. The last bar groups every scientist with 679 publications or more. The highlighted bar, 275–284 publications, is where this scientist sits. 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
55–64 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.

View publications distribution as a table
Number of Microbiology scientists by publication count, Research.com 2026 ranking edition. Based on 5,513 ranked scientists.
Publications Scientists This scientist
55–64 8
65–74 29
75–84 55
85–94 112
95–104 137
105–114 190
115–124 235
125–134 234
135–144 288
145–154 265
155–164 264
165–174 253
175–184 276
185–194 190
195–204 234
205–214 208
215–224 198
225–234 155
235–244 161
245–254 160
255–264 146
265–274 139
275–284 148 281
285–294 115
295–304 96
305–314 88
315–324 106
325–334 65
335–344 76
345–354 64
355–364 62
365–374 65
375–384 61
385–394 34
395–404 44
405–414 36
415–424 35
425–434 29
435–444 33
445–454 34
455–464 25
465–474 26
475–484 20
485–494 19
495–504 16
505–514 17
515–524 23
525–534 14
535–544 14
545–554 18
555–564 12
565–574 7
575–584 9
585–594 9
595–604 9
605–614 7
615–624 9
625–634 7
635–644 4
645–654 5
655–664 6
665–674 7
675–678 3
679+ 99
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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.

No. of scientists
50 100 150
Bar chart with 88 bars. Horizontal axis: D-Index, 40 to 127+. Vertical axis: number of scientists, 0 to 162. Most scientists, 162, have 58 D-Index. The last bar groups every scientist with 127 D-Index or more. The highlighted bar, 55 D-Index, is where this scientist sits. 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: 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.

View D-Index distribution as a table
Number of Microbiology scientists by D-index, Research.com 2026 ranking edition. Based on 5,513 ranked scientists.
D-Index Scientists This scientist
40 30
41 86
42 90
43 117
44 122
45 123
46 108
47 110
48 106
49 109
50 129
51 111
52 116
53 127
54 134
55 134 55
56 112
57 136
58 162
59 151
60 139
61 123
62 126
63 144
64 109
65 103
66 124
67 112
68 103
69 131
70 94
71 93
72 96
73 92
74 80
75 66
76 87
77 60
78 73
79 59
80 57
81 55
82 47
83 77
84 50
85 45
86 42
87 41
88 32
89 38
90 35
91 34
92 27
93 26
94 33
95 22
96 37
97 22
98 21
99 22
100 30
101 16
102 20
103 17
104 19
105 16
106 19
107 18
108 14
109 10
110 9
111 7
112 11
113 6
114 15
115 10
116 12
117 7
118 10
119 10
120 11
121 2
122 7
123 12
124 5
125 9
126 6
127+ 95
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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

  • 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

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