World's Best Scientists 2026 revealed!

D-Index & Metrics

Microbiology

D-Index
88
Citations
26556
World Ranking
765
National Ranking
4

Medicine

D-Index
89
Citations
27210
World Ranking
12761
National Ranking
32

Helen Giamarellou 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 Helen Giamarellou sits on this spectrum.

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: 264 scientists 155–164 publications: 264 scientists 165–174 publications: 253 scientists 175–184 publications: 276 scientists 185–194 publications: 190 scientists 195–204 publications: 233 scientists 205–214 publications: 207 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 publications 679+

This scientist: 434 publications — 92nd percentile

92% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 679 publications or more.

Helen Giamarellou 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 Helen Giamarellou sits on this spectrum.

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: 111 scientists 57 D-Index: 136 scientists 58 D-Index: 162 scientists 59 D-Index: 151 scientists 60 D-Index: 139 scientists 61 D-Index: 122 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: 93 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: 88 D-Index — 87th percentile

87% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 127 D-Index or more.

Research.com Recognitions

  • 2017 - Member of Academia Europaea

Overview

Helen Giamarellou is affiliated with the National and Kapodistrian University of Athens in Greece. Their research intersects medicine and biochemistry, genetics, and molecular biology, with a strong emphasis on molecular medicine, pharmacology, and applied microbiology and biotechnology. They have contributed to the fields of epidemiology and infectious diseases as well.

Their primary work centers on antibiotic resistance in bacteria, antibiotics pharmacokinetics and efficacy, and antibiotic use and resistance. Additional focused topics in their research include pneumonia and respiratory infections, bacterial identification and susceptibility testing, antimicrobial resistance in Staphylococcus, and pharmaceutical and antibiotic environmental impacts.

Frequent co-authors in Giamarellou's publications include:

  • Ilias Karaiskos
  • Irene Galani
  • Vassiliki Papoutsaki
  • Lamprini Galani
  • Anastasia Antoniadou

Publications by Helen Giamarellou appear regularly in several scientific journals. The most frequent venues include:

  • Antibiotics
  • Journal of Antimicrobial Chemotherapy
  • Expert Review of Anti-infective Therapy
  • European Journal of Clinical Microbiology & Infectious Diseases
  • International Journal of Antimicrobial Agents

Selected recent papers authored or co-authored by Giamarellou include:

  • "Antimicrobial Stewardship in the Hospital Setting: A Narrative Review," 2023, Antibiotics
  • "The Greek study in the effects of colchicine in COvid-19 complications prevention (GRECCO-19 study): Rationale and study design," 2020, Hellenic Journal of Cardiology
  • "Carbapenem-Sparing Strategies for ESBL Producers: When and How," 2020, Antibiotics
  • "Ceftazidime/avibactam in the era of carbapenemase-producing Klebsiella pneumoniae: experience from a national registry study," 2020, Journal of Antimicrobial Chemotherapy
  • "Multidrug-resistant Klebsiella pneumoniae: mechanisms of resistance including updated data for novel β-lactam-β-lactamase inhibitor combinations," 2021, Expert Review of Anti-infective Therapy

Helen Giamarellou has been recognized with membership in the Academia Europaea since 2017.

Best Publications

  • International Consensus Guidelines for the Optimal Use of the Polymyxins: Endorsed by the American College of Clinical Pharmacy (ACCP), European Society of Clinical Microbiology and Infectious Diseases (ESCMID), Infectious Diseases Society of America (IDSA), International Society for Anti-infective Pharmacology (ISAP), Society of Critical Care Medicine (SCCM), and Society of Infectious Diseases Pharmacists (SIDP).

    Brian T. Tsuji;Jason M. Pogue;Alexandre P. Zavascki;Mical Paul;Mical Paul

  • Metallo-β-lactamases: a last frontier for β-lactams?

    Giuseppe Cornaglia;Helen Giamarellou;Gian Maria Rossolini

  • Emergence of extensively drug-resistant and pandrug-resistant Gram-negative bacilli in Europe.

    M Souli;I Galani;H Giamarellou

  • 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

  • Population pharmacokinetic analysis of colistin methanesulfonate and colistin after intravenous administration in critically ill patients with infections caused by gram-negative bacteria.

    D. Plachouras;M. Karvanen;L. E. Friberg;E. Papadomichelakis

  • Acinetobacter baumannii: a universal threat to public health?

    Helen Giamarellou;Anastasia Antoniadou;Kyriaki Kanellakopoulou

  • Interventions to reduce colonisation and transmission of antimicrobial-resistant bacteria in intensive care units: an interrupted time series study and cluster randomised trial

    Lennie P G Derde;Ben S Cooper;Herman Goossens;Surbhi Malhotra-Kumar

  • Multidrug-resistant and extensively drug-resistant Gram-negative pathogens: current and emerging therapeutic approaches

    Ilias Karaiskos;Helen Giamarellou

  • Multidrug-resistant Gram-negative infections: what are the treatment options?

    Helen Giamarellou;Garyphallia Poulakou

  • Controlling the spread of carbapenemase-producing Gram-negatives: therapeutic approach and infection control

    Y. Carmeli;M. Akova;G. Cornaglia;G. L. Daikos

  • Health Care–Associated Native Valve Endocarditis: Importance of Non-nosocomial Acquisition

    Natividad Benito;José M. Miró;Elisa de Lazzari;Christopher H. Cabell

  • An Outbreak of Infection due to β-Lactamase Klebsiella pneumoniae Carbapenemase 2–Producing K. pneumoniae in a Greek University Hospital: Molecular Characterization, Epidemiology, and Outcomes

    Maria Souli;Irene Galani;Anastasia Antoniadou;Evangelos Papadomichelakis

  • Colistin-resistant isolates of Klebsiella pneumoniae emerging in intensive care unit patients: first report of a multiclonal cluster

    Anastasia Antoniadou;Flora Kontopidou;Garifalia Poulakou;Evangelos Koratzanis

  • Non-HACEK gram-negative bacillus endocarditis.

    Susan Morpeth;David Murdoch;Christopher H. Cabell;Adolf W. Karchmer

  • Application of a Loading Dose of Colistin Methanesulfonate in Critically Ill Patients: Population Pharmacokinetics, Protein Binding, and Prediction of Bacterial Kill

    Ami Fazlin Syed Mohamed;Ilias Karaiskos;Diamantis Plachouras;Matti Karvanen

  • Multidrug-resistant Gram-negative bacteria: how to treat and for how long.

    Helen Giamarellou

  • Community-acquired methicillin-resistant Staphylococcus aureus infections.

    Helen C. Maltezou;Helen Giamarellou

  • Outcomes of critically ill intensive care unit patients treated with fosfomycin for infections due to pandrug-resistant and extensively drug-resistant carbapenemase-producing Gram-negative bacteria.

    Konstantinos Pontikis;Ilias Karaiskos;Styliani Bastani;George Dimopoulos

  • Characterization of the plasmidic beta-lactamase CMY-2, which is responsible for cephamycin resistance.

    A Bauernfeind;I Stemplinger;R Jungwirth;H Giamarellou

  • Central nervous system manifestations of Mycoplasma pneumoniae infections.

    S. Tsiodras;I. Kelesidis;T. Kelesidis;E. Stamboulis

  • Effect of Clarithromycin in Patients with Sepsis and Ventilator-Associated Pneumonia

    Evangelos J. Giamarellos-Bourboulis;Jean-Claude Pechère;Christina Routsi;Diamantis Plachouras

Frequent Co-Authors

Evangelos J. Giamarellos-Bourboulis
Evangelos J. Giamarellos-Bourboulis National and Kapodistrian University of Athens
Yehuda Carmeli
Yehuda Carmeli Tel Aviv University
Jesús Rodríguez-Baño
Jesús Rodríguez-Baño University of Seville
Pierluigi Viale
Pierluigi Viale University of Bologna
Álvaro Pascual
Álvaro Pascual University of Seville
Mario Tumbarello
Mario Tumbarello Catholic University of the Sacred Heart
Matteo Bassetti
Matteo Bassetti University of Genoa
Jason A. Roberts
Jason A. Roberts University of Queensland
David L. Paterson
David L. Paterson University of Queensland
Luis Martínez-Martínez
Luis Martínez-Martínez University of Córdoba

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