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Microbiology
Germany
2023

D-Index & Metrics

Discipline name D-Index World Ranking Current World Ranking National Ranking Current National Ranking Publications Citations
Microbiology 107 281 258 16 15 407 40972

Helge Karch publications per year

The chart shows the history of publications by Helge Karch between 1980 and 2025, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. Helge Karch published across 46 years, from 1980 to 2025, averaging 9.7 papers a year. Output peaked at 31 publications in 1999. 2 of the 447 publications appeared in the last two years.

No. of publications
10 20 30
Bar chart. Horizontal axis: year, 1980 to 2025. Vertical axis: number of publications, 0 to 31. Peak 31 publications in 1999. 1980: 1 publication 1981: 1 publication 1982: 0 publications 1983: 2 publications 1984: 1 publication 1985: 5 publications 1986: 2 publications 1987: 7 publications 1988: 3 publications 1989: 5 publications 1990: 3 publications 1991: 2 publications 1992: 10 publications 1993: 8 publications 1994: 17 publications 1995: 17 publications 1996: 18 publications 1997: 14 publications 1998: 16 publications 1999: 31 publications 2000: 23 publications 2001: 13 publications 2002: 19 publications 2003: 15 publications 2004: 8 publications 2005: 16 publications 2006: 16 publications 2007: 16 publications 2008: 12 publications 2009: 22 publications 2010: 14 publications 2011: 19 publications 2012: 21 publications 2013: 12 publications 2014: 9 publications 2015: 8 publications 2016: 9 publications 2017: 10 publications 2018: 9 publications 2019: 5 publications 2020: 3 publications 2021: 3 publications 2022: 0 publications 2023: 0 publications 2024: 1 publication 2025: 1 publication
1980 2025

447 publications in total across all disciplines

View publications per year as a table
Helge Karch: publications per year, 1980 to 2025
Year Publications
1980 1
1981 1
1982 0
1983 2
1984 1
1985 5
1986 2
1987 7
1988 3
1989 5
1990 3
1991 2
1992 10
1993 8
1994 17
1995 17
1996 18
1997 14
1998 16
1999 31
2000 23
2001 13
2002 19
2003 15
2004 8
2005 16
2006 16
2007 16
2008 12
2009 22
2010 14
2011 19
2012 21
2013 12
2014 9
2015 8
2016 9
2017 10
2018 9
2019 5
2020 3
2021 3
2022 0
2023 0
2024 1
2025 1
Total 447
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Helge Karch 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 Helge Karch 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, 405–414 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: 407 publications — 90th percentile

90% 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 36 407
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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Helge Karch 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 Helge Karch 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, 107 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: 107 D-Index — 95th percentile

95% 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
96 37
97 22
98 21
99 22
100 30
101 16
102 20
103 17
104 19
105 16
106 19
107 18 107
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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Research.com Recognitions

  • 2023 - Research.com Microbiology in Germany Leader Award
  • 2022 - Research.com Microbiology in Germany Leader Award

Overview

Helge Karch is affiliated with the University of Münster in Germany and has contributed research primarily in the fields of biochemistry, genetics, molecular biology, medicine, and energy. Their work spans various subfields including endocrinology, infectious diseases, molecular biology, nutrition and dietetics, as well as energy engineering and power technology.

The scientist's research interests cover a range of topics with a substantial focus on Escherichia coli research studies, viral gastroenteritis research and epidemiology, infant nutrition and health, power systems and renewable energy, photovoltaic system optimization techniques, microgrid control and optimization, and antibiotic resistance in bacteria.

Helge Karch has published in multiple well-regarded venues including:

  • Toxins
  • Journal of Antimicrobial Chemotherapy
  • Scientific Reports
  • Microorganisms
  • International Journal of Molecular Sciences

Among their recent publications are:

  • "Dissemination of the blaCTX-M-15 gene among Enterobacteriaceae via outer membrane vesicles," 2020, Journal of Antimicrobial Chemotherapy
  • "RAB5A and TRAPPC6B are novel targets for Shiga toxin 2a inactivation in kidney epithelial cells," 2020, Scientific Reports
  • "Shiga Toxin (Stx)-Binding Glycosphingolipids of Primary Human Renal Cortical Epithelial Cells (pHRCEpiCs) and Stx-Mediated Cytotoxicity," 2021, Toxins
  • "Primary Human Renal Proximal Tubular Epithelial Cells (pHRPTEpiCs): Shiga Toxin (Stx) Glycosphingolipid Receptors, Stx Susceptibility, and Interaction with Membrane Microdomains," 2021, Toxins
  • "Modeling Native EHEC Outer Membrane Vesicles by Creating Synthetic Surrogates," 2020, Microorganisms

Frequent collaborators contributing to their body of work include:

  • Alexander Mellmann
  • Johannes Müthing
  • Gottfried Pohlentz
  • Johanna Detzner
  • Daniel Steil

Best Publications

  • Sex and virulence in Escherichia coli: an evolutionary perspective

    Thierry Wirth;Daniel Falush;Ruiting Lan;Frances M Colles

  • Characterisation of the Escherichia coli strain associated with an outbreak of haemolytic uraemic syndrome in Germany, 2011: a microbiological study

    Martina Bielaszewska;Alexander Mellmann;Wenlan Zhang;Robin Köck

  • Molecular analysis of the plasmid-encoded hemolysin of Escherichia coli O157:H7 strain EDL 933.

    H Schmidt;L Beutin;H Karch

  • Prospective Genomic Characterization of the German Enterohemorrhagic Escherichia coli O104:H4 Outbreak by Rapid Next Generation Sequencing Technology

    Alexander Mellmann;Dag Harmsen;Craig A. Cummings;Emily B. Zentz

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

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

  • Escherichia coli Harboring Shiga Toxin 2 Gene Variants: Frequency and Association with Clinical Symptoms

    Alexander W Friedrich;Martina Bielaszewska;Wen-Lan Zhang;Matthias Pulz

  • Enterohaemorrhagic Escherichia coli in human medicine

    Helge Karch;Phillip I. Tarr;Martina Bielaszewska

  • 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

  • EspP, a novel extracellular serine protease of enterohaemorrhagic Escherichia coli O157:H7 cleaves human coagulation factor V.

    Werner Brunder;Herbert Schmidt;Helge Karch

  • Prevalence of the “High-Pathogenicity Island” of Yersinia Species among Escherichia coli Strains That Are Pathogenic to Humans

    S. Schubert;A. Rakin;H. Karch;E. Carniel

  • Typing of intimin genes in human and animal enterohemorrhagic and enteropathogenic Escherichia coli: characterization of a new intimin variant.

    E. Oswald;H. Schmidt;S. Morabito;H. Karch

  • Preceding infections, immune factors, and outcome in Guillain-Barré syndrome

    R.D.M. Hadden;R.D.M. Hadden;H. Karch;H.-P. Hartung;H.-P. Hartung;J. Zielasek

  • Clinical Course and the Role of Shiga Toxin–Producing Escherichia coli Infection in the Hemolytic-Uremic Syndrome in Pediatric Patients, 1997–2000, in Germany and Austria: A Prospective Study

    Angela Gerber;Helge Karch;Franz Allerberger;Hege M. Verweyen

  • A DNA Probe to Identify Enterohemorrhagic Escherichia coli of 0157:H7 and Other Serotypes That Cause Hemorrhagic Colitis and Hemolytic Uremic Syndrome

    Myron M. Levine;Jian-guo Xu;James B. Kaper;Hermy Lior

  • A New Shiga Toxin 2 Variant (Stx2f) from Escherichia coli Isolated from Pigeons

    Herbert Schmidt;Jürgen Scheef;Stefano Morabito;Alfredo Caprioli

  • Development of PCR for screening of enteroaggregative Escherichia coli.

    H Schmidt;C Knop;S Franke;S Aleksic

  • Genotypic and phenotypic changes in the emergence of Escherichia coli O157:H7.

    Peter Feng;Keith A. Lampel;Helge Karch;Thomas S. Whittam

  • KatP, a novel catalase-peroxidase encoded by the large plasmid of enterohaemorrhagic Escherichia coli O157:H7.

    Werner Brunder;Herbert Schmidt;Helge Karch

  • Analysis of collection of hemolytic uremic syndrome-associated enterohemorrhagic Escherichia coli

    Alexander Mellmann;Martina Bielaszewska;Robin Köck;Alexander W Friedrich

  • Shiga toxin-encoding bacteriophages--genomes in motion.

    Sylvia Herold;Helge Karch;Herbert Schmidt

Frequent Co-Authors

Martina Bielaszewska
Martina Bielaszewska University of Münster
Alexander Mellmann
Alexander Mellmann University of Münster
Herbert Schmidt
Herbert Schmidt University of Hohenheim
Alexander W. Friedrich
Alexander W. Friedrich University Medical Center Groningen
Angelika Fruth
Angelika Fruth Robert Koch Institute
M. Alexander Schmidt
M. Alexander Schmidt University of Münster
Helmut Tschäpe
Helmut Tschäpe Robert Koch Institute
Alfredo Caprioli
Alfredo Caprioli Istituto Superiore di Sanità
Ulrich Dobrindt
Ulrich Dobrindt University of Münster
Rita Prager
Rita Prager Robert Koch Institute

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