Athanassios Tsakris

ORCID: 0000-0003-0656-4715
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About
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Research Areas
  • Antibiotic Resistance in Bacteria
  • Bacterial Identification and Susceptibility Testing
  • Antibiotics Pharmacokinetics and Efficacy
  • Antimicrobial Resistance in Staphylococcus
  • Antibiotic Use and Resistance
  • Pneumonia and Respiratory Infections
  • Bacterial biofilms and quorum sensing
  • SARS-CoV-2 and COVID-19 Research
  • Vibrio bacteria research studies
  • Enterobacteriaceae and Cronobacter Research
  • Pharmaceutical and Antibiotic Environmental Impacts
  • COVID-19 Clinical Research Studies
  • Streptococcal Infections and Treatments
  • Nosocomial Infections in ICU
  • Infections and bacterial resistance
  • Antifungal resistance and susceptibility
  • COVID-19 epidemiological studies
  • Respiratory viral infections research
  • Urinary Tract Infections Management
  • Viral Infections and Vectors
  • Viral Infections and Immunology Research
  • Mosquito-borne diseases and control
  • Tuberculosis Research and Epidemiology
  • Viral gastroenteritis research and epidemiology
  • Infective Endocarditis Diagnosis and Management

National and Kapodistrian University of Athens
2016-2025

University of Peloponnese
2019-2024

University General Hospital Attikon
2024

University of Belgrade
2023

Thriasio General Hospital of Elefsina
2020

University of Thessaly
2015-2019

Prefeitura do Município de São Paulo
2019

Universidade de São Paulo
2019

Development Agency of Karditsa
2019

Instituto Adolfo Lutz
2019

Since the first suspected case of coronavirus disease-2019 (COVID-19) on December 1st, 2019, in Wuhan, Hubei Province, China, a total 40,235 confirmed cases and 909 deaths have been reported China up to February 10, 2020, evoking fear locally internationally. Here, based publicly available epidemiological data for Hubei, from January 11 we provide estimates main parameters. In particular, an estimation fatality recovery ratios, along with their 90% confidence intervals as outbreak evolves....

10.1371/journal.pone.0230405 article EN cc-by PLoS ONE 2020-03-31
Belén Gutiérrez‐Gutiérrez Elena Salamanca Marina de Cueto Po‐Ren Hsueh Pierluigi Viale and 84 more José Ramón Paño‐Pardo Mario Venditti Mario Tumbarello George L. Daikos Rafael Cantón Yohei Doi Felipe Francisco Tuon Ilias Karaiskos Elena Pérez‐Nadales Mitchell J. Schwaber Özlem Kurt Azap Maria Souli Emmanuel Roilides Spyros Pournaras Murat Akova Federico Pérez Joaquín Bermejo Antonio Oliver Manel Almela Warren Lowman Benito Almirante Robert A. Bonomo Yehuda Carmeli David L. Paterson Álvaro Pascual Jesús Rodríguez‐Baño María Dolores del Toro Juan Gálvez-Acebal Marco Falcone Alessandro Russo Helen Giamarellou Enrico Maria Trecarichi Angela Raffaella Losito Elisa García‐Vázquez Alicia Hernández Juana Carretero Gómez Germán Bou Εlias Iosifidis Núria Prim Ferrán Navarro Beatriz Mirelis Anna Skiada Julia Origüen Rafael San Juan Mario Fernández‐Ruiz Nieves Larrosa Mireia Puig‐Asensio José Miguel Cisneros José Molina V. González V. Rucci E. Ruiz de Gopegui C. Marinescu Luis Martínez‐Martínez M.C. Fariñas M.E. Cano Mónica Gozalo Marta Mora-Rillo Carolina Navarro-San Francisco Carmen Peña Sílvia Gómez-Zorrilla Fé Tubau Athanassios Tsakris Olympia Zarkotou Anastasia Antoniadou Garyphallia Poulakou Johann Pitout Divya Virmani Julián Torre-Cisneros Julia Guzmán-Puche Özant Helvacı Ahmet Şahin Vicente Pintado Pablo Ramos-Ruiz Michele Bartoletti Maddalena Giannella E. Tacconelli F Riemenschneider Esther Calbo Cristina Badía Mariona Xercavins Oriol Gasch D. Fontanals E. Jové

10.1016/s1473-3099(17)30228-1 article EN The Lancet Infectious Diseases 2017-04-22

Abstract Since the first suspected case of coronavirus disease-2019 (COVID-19) on December 1st, 2019, in Wuhan, Hubei Province, China, a total 40,235 confirmed cases and 909 deaths have been reported China up to February 10, 2020, evoking fear locally internationally. Here, based publicly available epidemiological data for Hubei, from January 11 we provide estimates main parameters. In particular, an estimation fatality recovery ratios, along with their 90% confidence intervals as outbreak...

10.1101/2020.02.11.20022186 preprint EN cc-by-nc-nd medRxiv (Cold Spring Harbor Laboratory) 2020-02-13

ABSTRACT Resistance to imipenem and meropenem was observed in 211 (16.5%) isolates of Pseudomonas aeruginosa recovered a Greek university hospital during 1996 1998. In six selected from throughout this period, high-level resistance both carbapenems (MICs ≥ 128 μg/ml) associated with production the class B β-lactamase VIM-1. bla VIM -bearing belonged serotype O:12 were indistinguishable by pulsed-field gel electrophoresis.

10.1128/jcm.38.3.1290-1292.2000 article EN Journal of Clinical Microbiology 2000-03-01

The increasing frequency of class A KPC enzymes and B metallo-β-lactamases (MBLs) among Enterobacteriaceae as well their possible co-production makes early differentiation urgent. simple phenotypic algorithm employing three combined-disc tests consisting meropenem alone with phenylboronic acid (PBA), EDTA, or both PBA EDTA was designed for the MBL enzymes. Augmentation zone inhibition by ≥5 mm considered a positive test result. total 141 genotypically confirmed carbapenemase-positive...

10.1093/jac/dkq210 article EN Journal of Antimicrobial Chemotherapy 2010-06-11

To investigate the resistance mechanisms and genetic relationship of imipenem-resistant Acinetobacter baumannii isolates recovered in intensive care unit (ICU) a tertiary hospital.Imipenem-resistant A. clinical environmental were collected ICU Red Cross General Hospital, Athens, Greece between March October 2002. The tested by Etest MBL, PCR, RT-PCR sequencing for carbapenemase-encoding genes, PFGE synergy experiments using meropenem efflux pump inhibitor carbonyl cyanide...

10.1093/jac/dkl004 article EN Journal of Antimicrobial Chemotherapy 2006-01-23

The worldwide increase in the occurrence and dissemination of KPC beta-lactamases among gram-negative pathogens makes critical early detection these enzymes. Boronic acid disk tests using different antibiotic substrates were evaluated for KPC-possessing Klebsiella pneumoniae isolates. A total 57 genotypically confirmed K. isolates with varying carbapenem MICs examined. To measure specificity tests, 106 non-KPC-possessing (89 17 Escherichia coli isolates) randomly selected those exhibiting...

10.1128/jcm.01922-08 article EN Journal of Clinical Microbiology 2008-12-11

KPC-possessing Klebsiella pneumoniae have been found to be widespread in several regions but are still rarely detected Europe. We describe the characteristics of an outbreak caused by KPC producers a tertiary care Greek hospital.During 12 month period (October 2007-September 2008), 47 patients Hippokration University Hospital yielded K. isolates that exhibited reduced susceptibility carbapenems and were phenotypically positive for carbapenemase production negative metallo-beta-lactamase...

10.1093/jac/dkp207 article EN Journal of Antimicrobial Chemotherapy 2009-06-13

We compared six colistin susceptibility testing (ST) methods on 61 carbapenem-nonsusceptible Klebsiella pneumoniae (n = 41) and Acinetobacter baumannii 20) clinical isolates with provisionally elevated MICs by routine ST. Colistin were determined broth microdilution (BMD), BMD 0.002% polysorbate 80 (P80) (BMD-P80), agar dilution (AD), Etest, Vitek2, MIC test strip (MTS). was used as the reference method for comparison. The EUCAST-recommended susceptible resistant breakpoints of ≤2 >2 μg/ml,...

10.1128/aac.00868-15 article EN Antimicrobial Agents and Chemotherapy 2015-05-27
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