Athanassios Tsakris graduated as an MD from the Medical School of University of Athens, Greece and completed his training in Medical Microbiology at North Middlesex Hospital, London and the Central Public Health Laboratory, London. He received his PhD degree from the London School of Hygiene and Tropical Diseases, University of London. He is a Fellow in Medical Microbiology and Virology at the Royal College of Pathologists, London. He has spent sabbatical leaves and served as visiting Professor in the Division of Infectious Diseases, Department of Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA. Prof Tsakris is currently Professor and Head of the Department of Microbiology at the Medical School, University of Athens, Greece. He teaches various undergraduate and postgraduate academic courses at the University of Athens. He is member of the Executive Board of the Hellenic Center for Disease Control and Prevention and National representative of the European Antimicrobial Resistance Surveillance Network (EARS-Net). His major interests include surveillance of multidrug-resistant Gram-negatives, development of phenotypic methods for the detection of carbapenemases, infection control activities and molecular mechanisms of antimicrobial resistance. He is an evaluator of grant applications for several organizations worldwide. Prof Tsakris is an author of more than 250 peer-reviewed research articles. He also serves as co-editor or on the editorial boards of several major antimicrobial research/microbiology journals.