1 consepts of health and disease. 2 principles of epidemiology and epidemiological methods. 3 screening for disease. 4 epidemiology of communicable disease. 5 epidemiology of chronic non communicable disease and conditions. 6 occupational health. 7 environment and health water. 8 nutrition. 9 demography and family planning. 10 meternal and child health. 11 biostatistics. 12 national health policy-2002. 13 unsolved questions