Dr. Andrea obtained his M.D. from the University of Athens Medical School (1984) and his Ph.D degree through the University . He completed his Internship and Residency in Internal Medicine at the University Hospital. Dr. Andrea then subsequently completed a Research Fellowship in Infectious Diseases at Hartford Hospital, Hartford, Connecticut , and a Clinical Fellowship in Infectious Diseases at the Maine Medical Center, Portland, Maine . During his fellowship, he was also trained at the AIDS consultation service of Maine Medical Center. After his training, Dr. Andrea was appointed as Attending Physician at the Dept of Internal Medicine, Division of Infectious Diseases, University Hospital .Dr. Andrea authored or co-author more than 150 peer-reviewed papers in the fields of antimicrobial chemotherapy, HIV infection, hospital epidemiology, medical mycology, zoonoses, orthopedic infections, and infection in immunocompromised hosts.