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 82 1055 950 26 22 304 25231
Medicine 83 15602 14678 651 620 315 25379

P. Richard Harrigan publications per year

The chart shows the history of publications by P. Richard Harrigan between 1988 and 2025, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. P. Richard Harrigan published across 38 years, from 1988 to 2025, averaging 8.5 papers a year. Output peaked at 23 publications in 2010. 3 of the 322 publications appeared in the last two years.

No. of publications
5 10 15 20
Bar chart. Horizontal axis: year, 1988 to 2025. Vertical axis: number of publications, 0 to 23. Peak 23 publications in 2010. 1988: 1 publication 1989: 0 publications 1990: 1 publication 1991: 0 publications 1992: 1 publication 1993: 0 publications 1994: 2 publications 1995: 1 publication 1996: 5 publications 1997: 1 publication 1998: 8 publications 1999: 6 publications 2000: 3 publications 2001: 7 publications 2002: 6 publications 2003: 11 publications 2004: 9 publications 2005: 14 publications 2006: 13 publications 2007: 18 publications 2008: 14 publications 2009: 11 publications 2010: 23 publications 2011: 13 publications 2012: 14 publications 2013: 15 publications 2014: 20 publications 2015: 20 publications 2016: 18 publications 2017: 23 publications 2018: 10 publications 2019: 9 publications 2020: 8 publications 2021: 5 publications 2022: 6 publications 2023: 3 publications 2024: 1 publication 2025: 2 publications
1988 2025

322 publications in total across all disciplines

View publications per year as a table
P. Richard Harrigan: publications per year, 1988 to 2025
Year Publications
1988 1
1989 0
1990 1
1991 0
1992 1
1993 0
1994 2
1995 1
1996 5
1997 1
1998 8
1999 6
2000 3
2001 7
2002 6
2003 11
2004 9
2005 14
2006 13
2007 18
2008 14
2009 11
2010 23
2011 13
2012 14
2013 15
2014 20
2015 20
2016 18
2017 23
2018 10
2019 9
2020 8
2021 5
2022 6
2023 3
2024 1
2025 2
Total 322
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P. Richard Harrigan 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 P. Richard Harrigan 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, 295–304 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: 304 publications — 78th percentile

78% 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 96 304
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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P. Richard Harrigan 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 P. Richard Harrigan 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, 82 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: 82 D-Index — 81st percentile

81% 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 82
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

P. Richard Harrigan is affiliated with the University of British Columbia in Canada. Their research primarily focuses on infectious diseases, with a strong emphasis on HIV/AIDS and related viral infections. The scientist's work spans various fields including medicine, immunology and microbiology, infectious diseases, virology, epidemiology, molecular biology, and hepatology.

Their research topics prominently include:

  • HIV Research and Treatment
  • HIV/AIDS Drug Development and Treatment
  • HIV/AIDS Research and Interventions
  • Hepatitis C Virus Research
  • Hepatitis B Virus Studies
  • Liver Disease Diagnosis and Treatment
  • HIV-Related Health Complications and Treatments

Harrigan has published extensively in key venues that focus on virology and infectious diseases. Frequent publication venues include:

  • Viruses
  • The Journal of Infectious Diseases
  • PLoS Pathogens
  • JHEP Reports
  • HIV Medicine

Some recent notable papers authored or co-authored by Harrigan include:

  • "Multi-Laboratory Comparison of Next-Generation to Sanger-Based Sequencing for HIV-1 Drug Resistance Genotyping," 2020, Viruses
  • "Characteristics of hepatitis C virus resistance in an international cohort after a decade of direct-acting antivirals," 2022, JHEP Reports
  • "Are We Ready for NGS HIV Drug Resistance Testing? The Second 'Winnipeg Consensus' Symposium," 2020, Viruses
  • "Hospitalization Rates and Causes Among Persons With HIV in the United States and Canada, 2005-2015," 2020, The Journal of Infectious Diseases
  • "Opening the door on entry inhibitors in HIV: Redefining the use of entry inhibitors in heavily treatment experienced and treatment-limited individuals living with HIV," 2022, HIV Medicine

Harrigan collaborates regularly with various scientists in the field. Frequent co-authors include:

  • Richard D. Moore
  • Keri N. Althoff
  • Michael A. Horberg
  • Mari M. Kitahata
  • Neil Parkin

Their publication record reflects a strong engagement with HIV drug resistance, epidemiology of HIV-related complications, and the interplay between HIV and hepatitis viruses. Harrigan's work supports advancing knowledge on treatment strategies and viral resistance monitoring through molecular techniques and next-generation sequencing approaches.

Best Publications

  • The major genetic determinants of HIV-1 control affect HLA class I peptide presentation

    Pereyra F;Jia X;McLaren Pj

  • Association of highly active antiretroviral therapy coverage, population viral load, and yearly new HIV diagnoses in British Columbia, Canada: a population-based study

    Julio S.G. Montaner;Julio S.G. Montaner;Julio S.G. Montaner;Viviane D. Lima;Viviane D. Lima;Rolando Barrios;Benita Yip

  • Potential mechanism for sustained antiretroviral efficacy of AZT-3TC combination therapy

    BA Larder;SD Kemp;PR Harrigan

  • Changes in Mitochondrial DNA as a Marker of Nucleoside Toxicity in HIV-Infected Patients

    Hélène C F Côté;Zabrina L Brumme;Kevin J P Craib;Christopher S Alexander

  • The case for expanding access to highly active antiretroviral therapy to curb the growth of the HIV epidemic

    Julio S. G. Montaner;Robert Hogg;Evan Wood;Thomas Kerr

  • Predictors of HIV Drug-Resistance Mutations in a Large Antiretroviral-Naive Cohort Initiating Triple Antiretroviral Therapy

    P. Richard Harrigan;Robert S. Hogg;Winnie W. Y. Dong;Benita Yip

  • Adaptation of HIV-1 to human leukocyte antigen class I

    Y. Kawashima;K. Pfafferott;J. Frater;P. Matthews

  • Effect of medication adherence on survival of HIV-infected adults who start highly active antiretroviral therapy when the CD4+ cell count is 0.200 to 0.350 x 10(9) cells/L.

    Evan Wood;Robert S. Hogg;Benita Yip;P. Richard Harrigan

  • Expansion of HAART Coverage Is Associated with Sustained Decreases in HIV/AIDS Morbidity, Mortality and HIV Transmission: The “HIV Treatment as Prevention” Experience in a Canadian Setting

    Julio S.G. Montaner;Viviane D. Lima;P. Richard Harrigan;Lillian Lourenço

  • Longitudinal community plasma HIV-1 RNA concentrations and incidence of HIV-1 among injecting drug users: prospective cohort study

    Evan Wood;Thomas Kerr;Brandon D L Marshall;Kathy Li

  • Impact of HIV-1 subtype and antiretroviral therapy on protease and reverse transcriptase genotype: Results of a global collaboration

    Rami Kantor;David A Katzenstein;Brad Efron;Ana Patricia Carvalho

  • Adherence-resistance relationships for protease and non-nucleoside reverse transcriptase inhibitors explained by virological fitness.

    David R Bangsberg;Edward P Acosta;Reena Gupta;David Guzman

  • Molecular and Clinical Epidemiology of CXCR4-Using HIV-1 in a Large Population of Antiretroviral-Naive Individuals

    Zabrina L. Brumme;Zabrina L. Brumme;James Goodrich;Howard B. Mayer;Chanson J. Brumme

  • Continued improvement in survival among HIV-infected individuals with newer forms of highly active antiretroviral therapy.

    Viviane D. Lima;Robert S. Hogg;P. Richard Harrigan;David Moore

  • The accumulation of drugs within large unilamellar vesicles exhibiting a proton gradient: a survey.

    Thomas D. Madden;P.Richard Harrigan;Linda C.L. Tai;Marcel B. Bally

  • Expanded Access to Highly Active Antiretroviral Therapy: A Potentially Powerful Strategy to Curb the Growth of the HIV Epidemic

    Viviane D. Lima;Karissa Johnston;Karissa Johnston;Robert S. Hogg;Adrian R. Levy;Adrian R. Levy

  • Geographic and temporal trends in the molecular epidemiology and genetic mechanisms of transmitted HIV-1 drug resistance: an individual-patient- and sequence-level meta-analysis

    Soo Yon Rhee;Jose Luis Blanco;Michael R. Jordan;Jonathan Taylor

  • Predictors of viral suppression and rebound among HIV-positive men who have sex with men in a large multi-site Canadian cohort

    Zachary Tanner;Nathan Lachowsky;Nathan Lachowsky;Erin Ding;Hasina Samji

  • Pharmacokinetics and antiretroviral activity of lamivudine alone or when coadministered with zidovudine in human immunodeficiency virus type 1-infected pregnant women and their offspring.

    J. Moodley;D. Moodley;K. Pillay;H. Coovadia

  • Relative Replicative Fitness of Zidovudine-Resistant Human Immunodeficiency Virus Type 1 Isolates In Vitro

    P. Richard Harrigan;Stuart Bloor;Brendan A. Larder

  • Emergence of drug resistance is associated with an increased risk of death among patients first starting HAART.

    Robert S Hogg;Robert S Hogg;David R Bangsberg;Viviane D Lima;Chris Alexander

Frequent Co-Authors

Julio S. G. Montaner
Julio S. G. Montaner University of British Columbia
Robert S. Hogg
Robert S. Hogg Simon Fraser University
Zabrina L. Brumme
Zabrina L. Brumme Simon Fraser University
Chanson J. Brumme
Chanson J. Brumme University of British Columbia
Benita Yip
Benita Yip University of British Columbia
Viviane D. Lima
Viviane D. Lima University of British Columbia
Evan Wood
Evan Wood University of British Columbia
Mark A. Brockman
Mark A. Brockman Simon Fraser University
Jonathan M. Carlson
Jonathan M. Carlson Microsoft (United States)
David R. Bangsberg
David R. Bangsberg Simon Fraser University

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