Professor Darko Nozic was working more than 30 years In Clinic of infectious and tropical disease of Military Medical Academy in Belgrade and treated more than ten thousand patients with different infectious diseases. He is expert for viral hepatitis and antimicrobial therapy. He educated many generation of students of University of Military Medical Academy and Higher Medical School in Belgrade in the field of infectious disease. Medical work consists clinical management of infectious diseases, mainly focusing viral hepatitis especially hepatitis C and hepatitis B research, and antiviral and antimicrobial therapy.