Textbook for medical students include traditional topics of Hygiene and Epidemiology as a basis for biomedical primary prevention of diseases in the new concept. After getting familiar with the effects of environmental factors on human health textbooks include chapters pollution and health, water and health, waste, soil and health, nutrition and health, building and health, epidemiological methodology and epidemiology most important groups of diseases (cardiovascular, cancer, infectious) and addiction (legal and illegal/illicit drugs ), the issue of epidemiological studies and vaccination