Public health is multidisciplinary scientific field dealing with population health and the met- hods how to prevent from illnesses, to prolong li- fetime and reinforce health via organized effort of the society. It takes part in health improvement of population by means of medical education, health support, research and strategies of illness and inju- ries preventions. It is also a field that handles the difference decrease by struggling for fair providing of medical care, for its quality and availability.