Explain

The Future of Public Health Main functions of public health and its tasks Determinants of health analytical epidemiology descriptive epidemiology disease triad main problems Surveillance system epidemiology epidemiologist infection chain Strategies First Intervention Intervention-based health Additional Services Provided by LHDs Second intervention Department Structure Population-Based Health third intervention Health promotion programs The 12 health areas and their indicators Healthy People 2020 Minimal functions identified in Emmerson's report (1945)