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D-Index & Metrics

Discipline name D-Index World Ranking Current World Ranking National Ranking Current National Ranking Publications Citations
Microbiology 91 659 586 307 256 205 27424

Alison D. O'Brien publications per year

The chart shows the history of publications by Alison D. O'Brien between 1976 and 2025, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. Alison D. O'Brien published across 50 years, from 1976 to 2025, averaging 4.4 papers a year. Output peaked at 10 publications in 1987. 2 of the 220 publications appeared in the last two years.

No. of publications
2 4 6 8 10
Bar chart. Horizontal axis: year, 1976 to 2025. Vertical axis: number of publications, 0 to 10. Peak 10 publications in 1987. 1976: 2 publications 1977: 2 publications 1978: 3 publications 1979: 3 publications 1980: 4 publications 1981: 3 publications 1982: 9 publications 1983: 7 publications 1984: 5 publications 1985: 7 publications 1986: 6 publications 1987: 10 publications 1988: 5 publications 1989: 3 publications 1990: 6 publications 1991: 5 publications 1992: 3 publications 1993: 4 publications 1994: 6 publications 1995: 2 publications 1996: 5 publications 1997: 1 publication 1998: 3 publications 1999: 2 publications 2000: 5 publications 2001: 6 publications 2002: 7 publications 2003: 9 publications 2004: 4 publications 2005: 6 publications 2006: 10 publications 2007: 6 publications 2008: 8 publications 2009: 5 publications 2010: 5 publications 2011: 4 publications 2012: 4 publications 2013: 8 publications 2014: 7 publications 2015: 9 publications 2016: 2 publications 2017: 0 publications 2018: 2 publications 2019: 2 publications 2020: 1 publication 2021: 0 publications 2022: 0 publications 2023: 2 publications 2024: 0 publications 2025: 2 publications
1976 2025

220 publications in total across all disciplines

View publications per year as a table
Alison D. O'Brien: publications per year, 1976 to 2025
Year Publications
1976 2
1977 2
1978 3
1979 3
1980 4
1981 3
1982 9
1983 7
1984 5
1985 7
1986 6
1987 10
1988 5
1989 3
1990 6
1991 5
1992 3
1993 4
1994 6
1995 2
1996 5
1997 1
1998 3
1999 2
2000 5
2001 6
2002 7
2003 9
2004 4
2005 6
2006 10
2007 6
2008 8
2009 5
2010 5
2011 4
2012 4
2013 8
2014 7
2015 9
2016 2
2017 0
2018 2
2019 2
2020 1
2021 0
2022 0
2023 2
2024 0
2025 2
Total 220
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Alison D. O'Brien 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 Alison D. O'Brien 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, 205–214 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: 205 publications — 51st percentile

51% 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
205–214 208 205
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
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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Alison D. O'Brien 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 Alison D. O'Brien 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, 91 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: 91 D-Index — 89th percentile

89% 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 91
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

Alison D. O'Brien is affiliated with the Uniformed Services University of the Health Sciences in the United States. Their research spans multiple areas within medicine, particularly focusing on infectious diseases, clinical psychology, endocrinology, ecology, and health. The scientist has contributed to various fields through studies related to Escherichia coli, viral gastroenteritis, bacteriophages and microbial interactions, health disparities and outcomes, computational drug discovery methods, SARS-CoV-2 and COVID-19 research, as well as vaccines and immunoinformatics approaches.

Their recent published papers include:

  • The Virulence of Escherichia coli O157:H7 Isolates in Mice Depends on Shiga Toxin Type 2a (Stx2a)-Induction and High Levels of Stx2a in Stool, 2020, Frontiers in Cellular and Infection Microbiology
  • Exploring Social Determinants of Health in Healthy Aging Among Older Adults: A Qualitative Study, 2023, Progress in Community Health Partnerships
  • A highly sensitive cell-based luciferase assay for high-throughput automated screening of SARS-CoV-2 nsp5/3CLpro inhibitors, 2021, bioRxiv (Cold Spring Harbor Laboratory)
  • O017 Dupuytren's disease (DD): WNT4 knockdown in normal skin fibroblasts leads to 'DD-like' changes in the transcriptome, 2023, British Journal of Surgery
  • PROTOCOL: Bereavement Interventions for Children and Adolescents: An Evidence and Gap Map of Primary Studies and Systematic Reviews, 2025, Campbell Systematic Reviews

Frequent coauthors include:

  • Jocelyn R. Hauser
  • Rama R. Atitkar
  • Courtney D. Petro
  • Rebecca L. Lindsey
  • Nancy Strockbine

The most frequent publication venues for their work are:

  • Frontiers in Cellular and Infection Microbiology
  • Progress in Community Health Partnerships
  • bioRxiv (Cold Spring Harbor Laboratory)
  • British Journal of Surgery
  • Campbell Systematic Reviews

Best Publications

  • Shiga and Shiga-like toxins.

    Alison D. O'Brien;Randall K. Holmes

  • Multicenter Evaluation of a Sequence-Based Protocol for Subtyping Shiga Toxins and Standardizing Stx Nomenclature

    Flemming Scheutz;Louise D. Teel;Lothar Beutin;Denis Piérard

  • Shiga-like toxin-converting phages from Escherichia coli strains that cause hemorrhagic colitis or infantile diarrhea

    AD O'Brien;JW Newland;SF Miller;RK Holmes

  • Two toxin-converting phages from Escherichia coli O157:H7 strain 933 encode antigenically distinct toxins with similar biologic activities.

    N A Strockbine;L R Marques;J W Newland;H W Smith

  • The Diarrheal Response of Humans to Some Classic Serotypes of Enteropathogenic Escherichia coli is Dependent on a Plasmid Encoding an Enteroadhesiveness Factor

    Myron M. Levine;James P. Nataro;Helge Karch;Mary M. Baldini

  • Production of Shigella dysenteriae Type 1-Like Cytotoxin by Escherichia coli

    Alison D. O'Brien;Gerald D. LaVeck;Michael R. Thompson;Samuel B. Formal

  • Shiga toxin: biochemistry, genetics, mode of action, and role in pathogenesis.

    A. D. O'Brien;V. L. Tesh;A. Donohue-Rolfe;M. P. Jackson

  • Nucleotide sequence analysis and comparison of the structural genes for Shiga-like toxin I and Shiga-like toxin II encoded by bacteriophages from Escherichia coli 933

    Matthew P. Jackson;Roger J. Neill;Alison D. O'Brien;Randall K. Holmes

  • Salmonella typhimurium translocates flagellin across intestinal epithelia, inducing a proinflammatory response

    Andrew T. Gewirtz;Peter O. Simon;Clare K. Schmitt;Laura J. Taylor

  • Genetic control of susceptibility to salmonella typhimurium in mice: role of the lps gene.

    A D O'Brien;D L Rosenstreich;I Scher;G H Campbell

  • The role of the eae gene of enterohemorrhagic Escherichia coli in intimate attachment in vitro and in a porcine model.

    M S Donnenberg;S Tzipori;M L McKee;A D O'Brien

  • Comparison of the relative toxicities of Shiga-like toxins type I and type II for mice.

    V L Tesh;J A Burris;J W Owens;V M Gordon

  • Structure of shiga toxin type 2 (Stx2) from escherichia coli O157:H7

    Marie E. Fraser;Masao Fujinaga;Maia M. Cherney;Angela R. Melton-Celsa

  • Cloning and sequencing of the genes for Shiga toxin from Shigella dysenteriae type 1.

    Nancy A. Strockbine;Matthew Jackson;Lawrence Sung;Randall Holmes

  • Cloning and sequencing of a Shiga-like toxin type II variant from Escherichia coli strain responsible for edema disease of swine.

    D L Weinstein;M P Jackson;J E Samuel;R K Holmes

  • Genetic control of the innate resistance of mice to Salmonella typhimurium: expression of the Ity gene in peritoneal and splenic macrophages isolated in vitro.

    C R Lissner;R N Swanson;A D O'Brien

  • Two copies of Shiga-like toxin II-related genes common in enterohemorrhagic Escherichia coli strains are responsible for the antigenic heterogeneity of the O157:H- strain E32511.

    Clare K. Schmitt;Marian L. McKee;Alison D. O'Brien

  • Escherichia coli O157:H7 Requires Intimin for Enteropathogenicity in Calves

    Evelyn A. Dean-Nystrom;Brad T. Bosworth;Harley W. Moon;Alison D. O’Brien

  • Absence of All Components of the Flagellar Export and Synthesis Machinery Differentially Alters Virulence of Salmonella enterica Serovar Typhimurium in Models of Typhoid Fever, Survival in Macrophages, Tissue Culture Invasiveness, and Calf Enterocolitis

    Clare K. Schmitt;Jack S. Ikeda;Stephen C. Darnell;Patricia R. Watson

  • Purification and characterization of a Shigella dysenteriae 1-like toxin produced by Escherichia coli.

    Alison D. O'Brien;Gerald D. LaVeck

  • Mouse model for colonization and disease caused by enterohemorrhagic Escherichia coli O157:H7.

    E A Wadolkowski;J A Burris;A D O'Brien

Frequent Co-Authors

Randall K. Holmes
Randall K. Holmes University of Colorado Denver
James E. Samuel
James E. Samuel Texas A&M University
Irwin Scher
Irwin Scher OperTechBio
James P. Nataro
James P. Nataro University of Virginia
James B. Kaper
James B. Kaper University of Maryland, Baltimore
Andrew B. Onderdonk
Andrew B. Onderdonk Brigham and Women's Hospital
Lynn W. Enquist
Lynn W. Enquist Princeton University
Eckard Wimmer
Eckard Wimmer Stony Brook University
C. Neal Stewart
C. Neal Stewart University of Tennessee at Knoxville

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