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D-Index & Metrics

Discipline name D-Index World Ranking Current World Ranking National Ranking Current National Ranking Publications Citations
Microbiology 61 3012 2760 9 9 240 12718

Spyros Pournaras publications per year

The chart shows the history of publications by Spyros Pournaras between 1997 and 2025, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. Spyros Pournaras published across 29 years, from 1997 to 2025, averaging 9.3 papers a year. Output peaked at 18 publications in 2023. 22 of the 270 publications appeared in the last two years.

No. of publications
5 10 15
Bar chart. Horizontal axis: year, 1997 to 2025. Vertical axis: number of publications, 0 to 18. Peak 18 publications in 2023. 1997: 1 publication 1998: 1 publication 1999: 4 publications 2000: 7 publications 2001: 5 publications 2002: 3 publications 2003: 4 publications 2004: 8 publications 2005: 8 publications 2006: 9 publications 2007: 15 publications 2008: 11 publications 2009: 11 publications 2010: 16 publications 2011: 10 publications 2012: 11 publications 2013: 17 publications 2014: 9 publications 2015: 9 publications 2016: 9 publications 2017: 7 publications 2018: 12 publications 2019: 7 publications 2020: 9 publications 2021: 16 publications 2022: 11 publications 2023: 18 publications 2024: 12 publications 2025: 10 publications
1997 2025

270 publications in total across all disciplines

View publications per year as a table
Spyros Pournaras: publications per year, 1997 to 2025
Year Publications
1997 1
1998 1
1999 4
2000 7
2001 5
2002 3
2003 4
2004 8
2005 8
2006 9
2007 15
2008 11
2009 11
2010 16
2011 10
2012 11
2013 17
2014 9
2015 9
2016 9
2017 7
2018 12
2019 7
2020 9
2021 16
2022 11
2023 18
2024 12
2025 10
Total 270
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Spyros Pournaras 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 Spyros Pournaras 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, 235–244 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: 240 publications — 62nd percentile

62% 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
235–244 161 240
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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Spyros Pournaras 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 Spyros Pournaras 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, 61 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: 61 D-Index — 47th percentile

47% 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 61
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
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

Spyros Pournaras is affiliated with the National and Kapodistrian University of Athens in Greece. Their research primarily addresses topics in Medicine and Biochemistry, Genetics and Molecular Biology, with a strong focus on infectious diseases, molecular medicine, and epidemiology.

The main fields of study for Spyros Pournaras include:

  • Medicine
  • Biochemistry, Genetics and Molecular Biology

Subfields of particular interest are:

  • Infectious Diseases
  • Molecular Medicine
  • Epidemiology
  • Applied Microbiology and Biotechnology
  • Pharmacology

The scientist's work covers various aspects of antimicrobial resistance and infectious agents, with main topics including:

  • Antibiotic Resistance in Bacteria
  • Antibiotic Use and Resistance
  • Antifungal resistance and susceptibility
  • Antibiotics Pharmacokinetics and Efficacy
  • Bacterial Identification and Susceptibility Testing
  • Fungal Infections and Studies
  • SARS-CoV-2 and COVID-19 Research

Spyros Pournaras has contributed to a significant number of academic papers and book publications. Recent papers include:

  • Molecular Epidemiology and Antifungal Susceptibility of Trichophyton Isolates in Greece: Emergence of Terbinafine-Resistant Trichophytonmentagrophytes Type VIII Locally and Globally, 2021, Journal of Fungi
  • The ERACE-PA Global Surveillance Program: Ceftolozane/tazobactam and Ceftazidime/avibactam in vitro Activity against a Global Collection of Carbapenem-resistant Pseudomonas aeruginosa, 2021, European Journal of Clinical Microbiology & Infectious Diseases
  • Pseudomonas aeruginosa antimicrobial susceptibility profiles, resistance mechanisms and international clonal lineages: update from ESGARS-ESCMID/ISARPAE Group, 2023, Clinical Microbiology and Infection
  • COVID-19 and Antimicrobial Resistance: Data from the Greek Electronic System for the Surveillance of Antimicrobial Resistance-WHONET-Greece (January 2018-March 2021), 2021, Life
  • Activity of Sulbactam-Durlobactam and Comparators Against a National Collection of Carbapenem-Resistant Acinetobacter baumannii Isolates From Greece, 2022, Frontiers in Cellular and Infection Microbiology

In addition to journal articles, Pournaras has authored books, including:

  • Carbapenemase-Producing Organisms as Leading Cause of Hospital Infections, 2021, published by Frontiers Media

Their frequent collaborators include:

  • Joseph Meletiadis
  • Sophia Vourli
  • Maria Siopi
  • Athanassios Tsakris
  • Polyxeni Karakosta

Spyros Pournaras regularly publishes in the following venues:

  • Journal of Antimicrobial Chemotherapy
  • Open Forum Infectious Diseases
  • Journal of Fungi
  • Antimicrobial Agents and Chemotherapy
  • European Journal of Clinical Microbiology & Infectious Diseases

Best Publications

  • Global evolution of multidrug-resistant Acinetobacter baumannii clonal lineages.

    Raffaele Zarrilli;Spyros Pournaras;Maria Giannouli;Athanassios Tsakris

  • Effect of appropriate combination therapy on mortality of patients with bloodstream infections due to carbapenemase-producing Enterobacteriaceae (INCREMENT): a retrospective cohort study

    Belén Gutiérrez-Gutiérrez;Elena Salamanca;Marina de Cueto;Po-Ren Hsueh

  • Acquired carbapenemases in Gram-negative bacterial pathogens: detection and surveillance issues

    V. Miriagou;G. Cornaglia;M. Edelstein;I. Galani

  • Predictors of mortality in patients with bloodstream infections caused by KPC-producing Klebsiella pneumoniae and impact of appropriate antimicrobial treatment.

    O. Zarkotou;S. Pournaras;P. Tselioti;V. Dragoumanos

  • Outbreak of infections caused by Pseudomonas aeruginosa producing VIM-1 carbapenemase in Greece.

    Athanassios Tsakris;Spyros Pournaras;Neil Woodford;Marie-France I. Palepou

  • Defining Fractional Inhibitory Concentration Index Cutoffs for Additive Interactions Based on Self-Drug Additive Combinations, Monte Carlo Simulation Analysis, and In Vitro-In Vivo Correlation Data for Antifungal Drug Combinations against Aspergillus fumigatus

    Joseph Meletiadis;Spyros Pournaras;Emmanuel Roilides;Thomas J. Walsh

  • A simple phenotypic method for the differentiation of metallo-β-lactamases and class A KPC carbapenemases in Enterobacteriaceae clinical isolates

    Athanassios Tsakris;Aggeliki Poulou;Spyros Pournaras;Evangelia Voulgari

  • Evaluation of Boronic Acid Disk Tests for Differentiating KPC-Possessing Klebsiella pneumoniae Isolates in the Clinical Laboratory

    Athanassios Tsakris;Ioulia Kristo;Aggeliki Poulou;Katerina Themeli-Digalaki

  • Outbreak of multiple clones of imipenem-resistant Acinetobacter baumannii isolates expressing OXA-58 carbapenemase in an intensive care unit

    S. Pournaras;A. Markogiannakis;A. Ikonomidis;L. Kondyli

  • Prognostic value of follicular fluid 25-OH vitamin D and glucose levels in the IVF outcome

    Georgios M Anifandis;Konstantinos Dafopoulos;Christina I Messini;Nektarios Chalvatzas

  • Activity of tigecycline alone and in combination with colistin and meropenem against Klebsiella pneumoniae carbapenemase (KPC)-producing Enterobacteriaceae strains by time–kill assay

    Spyros Pournaras;Georgia Vrioni;Evangelia Neou;John Dendrinos

  • Clonal spread of KPC-2 carbapenemase-producing Klebsiella pneumoniae strains in Greece

    Spyros Pournaras;Efthimia Protonotariou;Evangelia Voulgari;Ioulia Kristo

  • Hospital outbreak of multiple clones of Pseudomonas aeruginosa carrying the unrelated metallo-β-lactamase gene variants blaVIM-2 and blaVIM-4

    S Pournaras;M Maniati;E Petinaki;L S Tzouvelekis

  • Comparative Evaluation of Colistin Susceptibility Testing Methods among Carbapenem-Nonsusceptible Klebsiella pneumoniae and Acinetobacter baumannii Clinical Isolates

    Konstantina Dafopoulou;Konstantina Dafopoulou;Olympia Zarkotou;Evangelia Dimitroulia;Christos Hadjichristodoulou

  • Modified CLSI Extended-Spectrum β-Lactamase (ESBL) Confirmatory Test for Phenotypic Detection of ESBLs among Enterobacteriaceae Producing Various β-Lactamases

    Aggeliki Poulou;Evgenia Grivakou;Georgia Vrioni;Vassiliki Koumaki

  • VIM-1 Metallo-β-lactamase in Acinetobacter baumannii

    Athanassios Tsakris;Alexandros Ikonomidis;Spyros Pournaras;Leonidas S. Tzouvelekis

  • Novel Variant (blaVIM-4) of the Metallo-β-Lactamase Gene blaVIM-1 in a Clinical Strain of Pseudomonas aeruginosa

    Spyros Pournaras;Athanassios Tsakris;Maria Maniati;Leonidas S. Tzouvelekis

  • Cross-transmission of multidrug-resistant Acinetobacter baumannii clonal strains causing episodes of sepsis in a trauma intensive care unit.

    Antonios Markogiannakis;George Fildisis;Sofia Tsiplakou;Alexandros Ikonomidis

  • First occurrence of KPC-2-possessing Klebsiella pneumoniae in a Greek hospital and recommendation for detection with boronic acid disc tests

    Athanassios Tsakris;Ioulia Kristo;Aggeliki Poulou;Fani Markou

  • Risk Factors and Outcomes Associated with Acquisition of Colistin-Resistant KPC-Producing Klebsiella pneumoniae: a Matched Case-Control Study

    Olympia Zarkotou;Spyros Pournaras;Evangelia Voulgari;Georgios Chrysos

Frequent Co-Authors

Athanassios Tsakris
Athanassios Tsakris National and Kapodistrian University of Athens
Joseph Meletiadis
Joseph Meletiadis National and Kapodistrian University of Athens
Emmanuel Roilides
Emmanuel Roilides Aristotle University of Thessaloniki
Yehuda Carmeli
Yehuda Carmeli Tel Aviv University
Raffaele Zarrilli
Raffaele Zarrilli University of Naples Federico II
Johan W. Mouton
Johan W. Mouton Radboud University Medical Center
Álvaro Pascual
Álvaro Pascual University of Seville
Rafael Cantón
Rafael Cantón Instituto Ramón y Cajal de Investigación Sanitaria
Leonidas S. Tzouvelekis
Leonidas S. Tzouvelekis National and Kapodistrian University of Athens
Robert A. Bonomo
Robert A. Bonomo Case Western Reserve University

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