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D-Index & Metrics

Discipline name D-Index World Ranking Current World Ranking National Ranking Current National Ranking Publications Citations
Microbiology 67 2285 2087 11 11 279 14811

Edward P. Rybicki publications per year

The chart shows the history of publications by Edward P. Rybicki between 1981 and 2025, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. Edward P. Rybicki published across 45 years, from 1981 to 2025, averaging 7 papers a year. Output peaked at 17 publications in 2008. 9 of the 316 publications appeared in the last two years.

No. of publications
5 10 15
Bar chart. Horizontal axis: year, 1981 to 2025. Vertical axis: number of publications, 0 to 17. Peak 17 publications in 2008. 1981: 1 publication 1982: 2 publications 1983: 2 publications 1984: 1 publication 1985: 2 publications 1986: 2 publications 1987: 1 publication 1988: 1 publication 1989: 5 publications 1990: 4 publications 1991: 3 publications 1992: 2 publications 1993: 4 publications 1994: 4 publications 1995: 1 publication 1996: 1 publication 1997: 3 publications 1998: 7 publications 1999: 5 publications 2000: 4 publications 2001: 7 publications 2002: 4 publications 2003: 9 publications 2004: 4 publications 2005: 5 publications 2006: 12 publications 2007: 8 publications 2008: 17 publications 2009: 17 publications 2010: 15 publications 2011: 14 publications 2012: 10 publications 2013: 16 publications 2014: 13 publications 2015: 9 publications 2016: 8 publications 2017: 10 publications 2018: 17 publications 2019: 10 publications 2020: 16 publications 2021: 5 publications 2022: 10 publications 2023: 16 publications 2024: 3 publications 2025: 6 publications
1981 2025

316 publications in total across all disciplines

View publications per year as a table
Edward P. Rybicki: publications per year, 1981 to 2025
Year Publications
1981 1
1982 2
1983 2
1984 1
1985 2
1986 2
1987 1
1988 1
1989 5
1990 4
1991 3
1992 2
1993 4
1994 4
1995 1
1996 1
1997 3
1998 7
1999 5
2000 4
2001 7
2002 4
2003 9
2004 4
2005 5
2006 12
2007 8
2008 17
2009 17
2010 15
2011 14
2012 10
2013 16
2014 13
2015 9
2016 8
2017 10
2018 17
2019 10
2020 16
2021 5
2022 10
2023 16
2024 3
2025 6
Total 316
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Edward P. Rybicki publications per year - data summary

  • Edward P. Rybicki, a Microbiology scholar from University of Cape Town, has 316 publications recorded across 45 years, from 1981 to 2025.
  • The oldest publication on record dates to 1981 and the most recent to 2025.
  • The most productive years are 2008, 2009 and 2018, with 17 publications each.
  • The least productive years with any output are 1981, 1984, 1987, 1988 and others, with 1 publication each.
  • The rate of publication averages 7.0 papers per year over the whole span, or 7.0 per year counting only the 45 years with at least one publication.
  • The last 5 years on the chart (2021-2025) hold 40 publications, 13% of the career total.
  • Split into equal eras - 1981-1995: 35 publications (2.3 per year); 1996-2010: 118 publications (7.9 per year); 2011-2025: 163 publications (10.9 per year).
  • Comparing the opening and closing eras, the overall trend of publication is rising.

Edward P. Rybicki 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 Edward P. Rybicki 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: 279 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
275–284 148 279
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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Edward P. Rybicki publication distribution in Microbiology in 2026 - data summary

  • The chart plots the publication count of all 5,513 Microbiology scientists ranked by Research.com in 2026, grouped into 64 ranges running from 55–64 to 679+ publications.
  • Edward P. Rybicki, a Microbiology scholar from University of Cape Town, records 279 publications - the 73rd percentile of the discipline.
  • 73% of ranked Microbiology scientists score the same or lower than Edward P. Rybicki, and about 27% score higher.
  • The median of the discipline falls in the 195–204 publications range, and Edward P. Rybicki ranks above the median.
  • The most crowded range is 135–144 publications, holding 288 scientists (5% of the field).
  • 54% of the field sits in the lowest quarter of the value range (up to 205–214 publications), so the distribution is heavily right-skewed and high scores are rare.
  • The final bar has no upper bound: it groups every scientist with 679 publications or more, 99 scientists in all (2% of the field).

Edward P. Rybicki 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 Edward P. Rybicki 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, 67 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: 67 D-Index — 60th percentile

60% 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 67
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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Edward P. Rybicki D-index placement in Microbiology in 2026 - data summary

  • The chart plots the discipline H-index (D-index) of all 5,513 Microbiology scientists ranked by Research.com in 2026, grouped into 88 ranges running from 40 to 127+ D-Index.
  • Edward P. Rybicki, a Microbiology scholar from University of Cape Town, records 67 D-Index - the 60th percentile of the discipline.
  • 60% of ranked Microbiology scientists score the same or lower than Edward P. Rybicki, and about 40% score higher.
  • The median of the discipline falls in the 63 D-Index range, and Edward P. Rybicki ranks above the median.
  • The most crowded range is 58 D-Index, holding 162 scientists (3% of the field).
  • 47% of the field sits in the lowest quarter of the value range (up to 61 D-Index), so the distribution leans towards the lower end of the scale.
  • The final bar has no upper bound: it groups every scientist with 127 D-Index or more, 95 scientists in all (2% of the field).

Overview

Edward P. Rybicki is affiliated with the University of Cape Town in South Africa. Their research spans multiple fields including Agricultural and Biological Sciences, Biochemistry, Genetics and Molecular Biology, and Medicine, with a focus on Plant Science, Biotechnology, Infectious Diseases, Molecular Biology, and Epidemiology.

The scientist's work covers a range of main topics, highlighted by extensive publication activity in Plant Virus Research Studies, Transgenic Plants and Applications, Toxin Mechanisms and Immunotoxins, Herpesvirus Infections and Treatments, Bacteriophages and microbial interactions, Vector-Borne Animal Diseases, and Animal Virus Infections Studies.

Recent papers authored or co-authored include:

  • Integrating plant molecular farming and materials research for next-generation vaccines, 2021, Nature Reviews Materials
  • Co-expression of human calreticulin significantly improves the production of HIV gp140 and other viral glycoproteins in plants, 2020, Plant Biotechnology Journal
  • Prospects for SARS-CoV-2 diagnostics, therapeutics and vaccines in Africa, 2020, Nature Reviews Microbiology
  • Engineering the Plant Secretory Pathway for the Production of Next-Generation Pharmaceuticals, 2020, Trends in biotechnology
  • Extended Set of GoldenBraid Compatible Vectors for Fast Assembly of Multigenic Constructs and Their Use to Create Geminiviral Expression Vectors, 2020, Frontiers in Plant Science

Frequent co-authors in their collaborative work include Ann E. Meyers, Anna-Lise Williamson, Rosamund Chapman, Emmanuel Margolin, and Inga I. Hitzeroth.

Publication venues frequently featuring their work are:

  • Frontiers in Plant Science
  • Vaccines
  • Archives of Virology
  • Science
  • bioRxiv (Cold Spring Harbor Laboratory)

Best Publications

  • RDP: detection of recombination amongst aligned sequences

    Darren Martin;Ed Rybicki

  • Revision of taxonomic criteria for species demarcation in the family Geminiviridae, and an updated list of begomovirus species.

    Claude M. Fauquet;D. M. Bisaro;R. W. Briddon;J. K. Brown

  • Plant‐made vaccines for humans and animals

    Edward Peter Rybicki

  • Optimization of human papillomavirus type 16 (HPV-16) L1 expression in plants: comparison of the suitability of different HPV-16 L1 gene variants and different cell-compartment localization

    J. Maclean;M. Koekemoer;A. J. Olivier;D. Stewart

  • A phylogenetic and evolutionary justification for three genera of Geminiviridae

    E. P. Rybicki

  • Plant-produced vaccines: promise and reality

    Edward P. Rybicki

  • A Top Ten list for economically important plant viruses

    Edward P. Rybicki

  • Therapeutic vaccines for high-risk HPV-associated diseases.

    Aleyo Chabeda;Romana J.R. Yanez;Renate Lamprecht;Ann E. Meyers

  • Oral Immunogenicity of Human Papillomavirus-Like Particles Expressed in Potato

    Heribert Warzecha;Hugh S. Mason;Christopher Lane;Anders Tryggvesson

  • An association between HIV-1 subtypes and mode of transmission in Cape Town, South Africa.

    van Harmelen J;Wood R;Lambrick M;Rybicki Ep

  • The molecular biology of mastreviruses.

    Kenneth E. Palmer;Edward P. Rybicki

  • Maize streak virus: an old and complex 'emerging' pathogen.

    Dionne N. Shepherd;Darren P. Martin;Eric Van Der Walt;Kyle Dent;Kyle Dent

  • A polymerase chain reaction method adapted for selective amplification and cloning of 3′ sequences of potyviral genomes: application to dasheen mosaic virus.

    S.S. Pappu;R. Brand;H.R. Pappu;E.P. Rybicki

  • Complete nucleotide sequence and host range of South African cassava mosaic virus: further evidence for recombination amongst begomoviruses.

    L. C. Berrie;E. P. Rybicki;M. E. C. Rey

  • Plant-based vaccines against viruses

    Edward P Rybicki

  • High level protein expression in plants through the use of a novel autonomously replicating geminivirus shuttle vector.

    Guy L. Regnard;Richard P. Halley-Stott;Fiona L. Tanzer;Inga I. Hitzeroth

  • A method for rapid production of heteromultimeric protein complexes in plants: assembly of protective bluetongue virus-like particles.

    Eva C. Thuenemann;Ann E. Meyers;Jeanette Verwey;Edward P. Rybicki

  • Recombination, decreased host specificity and increased mobility may have driven the emergence of maize streak virus as an agricultural pathogen.

    Arvind Varsani;Dionne Natalie Shepherd;Adérito Luis Monjane;Betty E. Owor

  • A protocol for the rapid isolation of full geminivirus genomes from dried plant tissue

    Dionne Natalie Shepherd;Darren Patrick Martin;Pierre Lefeuvre;Adérito Luis Monjane

  • Detection and typing of maize streak virus and other distantly related geminiviruses of grasses by polymerase chain reaction amplification of a conserved viral sequence.

    Edward P. Rybicki;Fiona L. Hughes

  • Plant Virus Disease Problems in The Developing World

    Edward P. Rybicki;Gerhard Pietersen

Frequent Co-Authors

Anna-Lise Williamson
Anna-Lise Williamson University of Cape Town
Arvind Varsani
Arvind Varsani Arizona State University
Pierre Lefeuvre
Pierre Lefeuvre University of La Réunion
Lynn Morris
Lynn Morris University of the Witwatersrand
Penny L. Moore
Penny L. Moore National Health Laboratory Service
Carolyn Williamson
Carolyn Williamson University of Cape Town
Rob W. Briddon
Rob W. Briddon National Institute for Biotechnology and Genetic Engineering
Don A. Cowan
Don A. Cowan University of Pretoria
Peter G. Markham
Peter G. Markham John Innes Centre

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