World's Best Scientists 2026 revealed!

D-Index & Metrics

Discipline name D-Index World Ranking Current World Ranking National Ranking Current National Ranking Publications Citations
Microbiology 95 539 476 55 52 415 31500
Medicine 96 9694 9098 941 897 468 32795

A. Sarah Walker publications per year

The chart shows the history of publications by A. Sarah Walker between 1996 and 2025, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. A. Sarah Walker published across 30 years, from 1996 to 2025, averaging 17.9 papers a year. Output peaked at 69 publications in 2021. 44 of the 536 publications appeared in the last two years.

No. of publications
20 40 60
Bar chart. Horizontal axis: year, 1996 to 2025. Vertical axis: number of publications, 0 to 69. Peak 69 publications in 2021. 1996: 1 publication 1997: 1 publication 1998: 0 publications 1999: 0 publications 2000: 0 publications 2001: 2 publications 2002: 5 publications 2003: 3 publications 2004: 10 publications 2005: 5 publications 2006: 6 publications 2007: 10 publications 2008: 15 publications 2009: 7 publications 2010: 18 publications 2011: 13 publications 2012: 25 publications 2013: 25 publications 2014: 33 publications 2015: 17 publications 2016: 27 publications 2017: 40 publications 2018: 34 publications 2019: 52 publications 2020: 44 publications 2021: 69 publications 2022: 18 publications 2023: 12 publications 2024: 27 publications 2025: 17 publications
1996 2025

536 publications in total across all disciplines

View publications per year as a table
A. Sarah Walker: publications per year, 1996 to 2025
Year Publications
1996 1
1997 1
1998 0
1999 0
2000 0
2001 2
2002 5
2003 3
2004 10
2005 5
2006 6
2007 10
2008 15
2009 7
2010 18
2011 13
2012 25
2013 25
2014 33
2015 17
2016 27
2017 40
2018 34
2019 52
2020 44
2021 69
2022 18
2023 12
2024 27
2025 17
Total 536
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A. Sarah Walker 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 A. Sarah Walker 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, 415–424 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: 415 publications — 91st percentile

91% 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
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 35 415
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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A. Sarah Walker 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 A. Sarah Walker 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, 95 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: 95 D-Index — 90th percentile

90% 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
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 95
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

A. Sarah Walker is affiliated with the University of Oxford in the United Kingdom and has a research focus primarily within the field of Medicine. Their work spans various subfields, including Infectious Diseases, Epidemiology, Applied Microbiology and Biotechnology, General Health Professions, and Molecular Biology.

Their research encompasses multiple topics related to infectious agents and public health, with a strong emphasis on SARS-CoV-2 and COVID-19. Key topics of their work include:

  • SARS-CoV-2 and COVID-19 Research
  • Antibiotic Use and Resistance
  • COVID-19 Clinical Research Studies
  • SARS-CoV-2 detection and testing
  • Antibiotic Resistance in Bacteria
  • Bacterial Identification and Susceptibility Testing
  • COVID-19 epidemiological studies

A. Sarah Walker has contributed to several papers published in prominent journals, including:

  • "Antibody Status and Incidence of SARS-CoV-2 Infection in Health Care Workers" (2020), New England Journal of Medicine
  • "Effect of Covid-19 Vaccination on Transmission of Alpha and Delta Variants" (2022), New England Journal of Medicine
  • "Antibody responses to SARS-CoV-2 vaccines in 45,965 adults from the general population of the United Kingdom" (2021), Nature Microbiology
  • "Impact of vaccination on new SARS-CoV-2 infections in the United Kingdom" (2021), Nature Medicine
  • "The Duration, Dynamics, and Determinants of Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) Antibody Responses in Individual Healthcare Workers" (2021), Clinical Infectious Diseases

The scientist collaborates frequently with other researchers in their field. Notable frequent co-authors include Tim Peto, Koen B. Pouwels, Derrick W. Crook, Nicole Stoesser, and David W. Eyre.

Their scholarly outputs have appeared most often in these publication venues:

  • bioRxiv (Cold Spring Harbor Laboratory)
  • Nature Communications
  • Clinical Infectious Diseases
  • Journal of Infection
  • Wellcome Open Research

Best Publications

  • Whole-genome sequencing to delineate Mycobacterium tuberculosis outbreaks: a retrospective observational study

    Timothy M. Walker;Camilla L.C. Ip;Ruth H. Harrell;Jason T. Evans

  • Antibody Status and Incidence of SARS-CoV-2 Infection in Health Care Workers.

    S F Lumley;D O'Donnell;N E Stoesser;P C Matthews

  • Whole-genome sequencing for prediction of Mycobacterium tuberculosis drug susceptibility and resistance: a retrospective cohort study.

    Timothy M Walker;Thomas A Kohl;Shaheed V Omar;Jessica Hedge

  • Rapid antibiotic-resistance predictions from genome sequence data for Staphylococcus aureus and Mycobacterium tuberculosis.

    P Bradley;N C Gordon;T M Walker;L Dunn

  • Correction: Corrigendum: Rapid antibiotic-resistance predictions from genome sequence data for Staphylococcus aureus and Mycobacterium tuberculosis

    Phelim Bradley;N. Claire Gordon;Timothy M. Walker;Laura Dunn

  • Evidence for human transmission of amyloid-β pathology and cerebral amyloid angiopathy

    Zane Jaunmuktane;Simon Mead;Simon Mead;Matthew Ellis;Jonathan D. F. Wadsworth;Jonathan D. F. Wadsworth

  • The challenge of antimicrobial resistance: What economics can contribute

    Laurence S. J. Roope;Laurence S. J. Roope;Laurence S. J. Roope;Richard D. Smith;Koen B. Pouwels;Koen B. Pouwels;James Buchanan;James Buchanan

  • Multilocus Sequence Typing of Clostridium difficile

    David Griffiths;David Griffiths;Warren Fawley;Melina Kachrimanidou;Melina Kachrimanidou;Rory Bowden

  • Within-host evolution of bacterial pathogens

    Xavier Didelot;A. Sarah Walker;Tim E. Peto;Derrick W. Crook;Derrick W. Crook

  • Determinants of survival following HIV-1 seroconversion after the introduction of HAART.

    Kholoud Porter;Abdel Babiker;Krishnan Bhaskaran;Janet Darbyshire

  • Effect of Delta variant on viral burden and vaccine effectiveness against new SARS-CoV-2 infections in the UK.

    Koen B. Pouwels;Koen B. Pouwels;Emma Pritchard;Emma Pritchard;Philippa C. Matthews;Philippa C. Matthews;Philippa C. Matthews;Nicole Stoesser

  • A Candida auris Outbreak and Its Control in an Intensive Care Setting.

    David W Eyre;Anna E Sheppard;Hilary Madder;Ian Moir

  • Prediction of Susceptibility to First-Line Tuberculosis Drugs by DNA Sequencing.

    Caroline Allix-Béguec;Irena Arandjelovic

  • Prediction of Staphylococcus aureus Antimicrobial Resistance by Whole-Genome Sequencing

    N C Gordon;J R Price;K Cole;Richard G Everitt

  • Same-Day Diagnostic and Surveillance Data for Tuberculosis via Whole-Genome Sequencing of Direct Respiratory Samples.

    Antonina A. Votintseva;Phelim Bradley;Louise Pankhurst;Carlos del Ojo Elias

  • The Hospital Water Environment as a Reservoir for Carbapenem-Resistant Organisms Causing Hospital-Acquired Infections-A Systematic Review of the Literature.

    Alice E Kizny Gordon;Amy J Mathers;Elaine Y L Cheong;Thomas Gottlieb

  • Predicting antimicrobial susceptibilities for Escherichia coli and Klebsiella pneumoniae isolates using whole genomic sequence data.

    N. Stoesser;E. M. Batty;D. W. Eyre;M. Morgan

  • Impact of vaccination on new SARS-CoV-2 infections in the United Kingdom.

    Emma Pritchard;Emma Pritchard;Philippa C. Matthews;Philippa C. Matthews;Nicole Stoesser;David W. Eyre

  • Evolutionary History of the Global Emergence of the Escherichia coli Epidemic Clone ST131

    Nicole Stoesser;Anna E. Sheppard;Louise Pankhurst;Nicola De Maio

  • Effects of control interventions on Clostridium difficile infection in England: an observational study

    Kate E Dingle;Kate E Dingle;Kate E Dingle;Xavier Didelot;T Phuong Quan;T Phuong Quan;T Phuong Quan;David W Eyre;David W Eyre

  • Non-AIDS-defining deaths and immunodeficiency in the era of combination antiretroviral therapy.

    Benoît Marin;Rodolphe Thiébaut;Heiner C. Bucher;Virginie Rondeau

  • Antibody responses to SARS-CoV-2 vaccines in 45,965 adults from the general population of the United Kingdom.

    J Wei;N Stoesser;P Matthews;P Matthews;D Ayoubkhani

Frequent Co-Authors

Derrick W. Crook
Derrick W. Crook University of Oxford
Tim E. A. Peto
Tim E. A. Peto University of Oxford
Nicole Stoesser
Nicole Stoesser University of Oxford
David W. Eyre
David W. Eyre University of Oxford
Daniel J. Wilson
Daniel J. Wilson University of Oxford
Philippa C. Matthews
Philippa C. Matthews University of Oxford
David H. Wyllie
David H. Wyllie Public Health England
Diana M. Gibb
Diana M. Gibb University College London
Kate E. Dingle
Kate E. Dingle University of Oxford
Mark H. Wilcox
Mark H. Wilcox University of Leeds

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