American College of Epidemiology 

Field of public health

Public health includes many professional disciplines that focus on the health of entire populations rather than individual patients. Public health practitioners have the responsibility of monitoring and tracking the health concerns of entire communities as well promoting healthy practices and behaviors to prevent diseases in groups. This population-based approach to health combines numerous government and academic agencies to ensure the promotion of health for all:

•   The mission of Public Health defined by the ASPH
  
  
•   Ten great public health achievements in the 20th century
  
  
•   Public health in the news
  
  
•   Links to public health resources and agencies