1. Department of Clinical Bacteriology, Parasitology, Zoonosis and Geographical Medicine, University Hospital of Heraklion, Crete, Greece
2. Department of Internal Medicine, “AHEPA” General Hospital, Thessaloniki, Greece
3. Department of Infectious Diseases, University Hospital of Patras, Patras, Greece
4. Department of Microbiology-Infectious Diseases, University Hospital of Ioannina, Ioannina, Greece
5. Department of Microbiology-Infectious Diseases, University Hospital of Alexandroupolis, Alexandroupolis, Greece
6. Department of Intensive Care Unit, “Papanikolaou” General Hospital, Thessaloniki, Greece
7. Department of Internal Medicine, General Hospital of Chalkis, Euboea, Greece
8. Patient Care Area of Internal Medicine, General Hospital of Chania, Chania, Greece