Epidemiology and Health for All. The role of epidemiology in a health policy

World Health Organization's goal Health for All is the starting point for a most ambitious health policy ever. The paper analyzes the role of epidemiology in the Organization's work, particularly in the Health for All development. During WHO's early years, epidemiology helped to design and carry out major public health campaigns against such scourges of the humanity as yaws, tuberculosis, malaria and small pox. When the Organization during the 1960s began to emphasize the need to develop the infrastructure of health care, health services research partly replaced epidemiology as WHO's main scientific allay. After the Health for All policy was launched in 1987, epidemiology has again played a major role in establishing the scientific background of the policy. The European experiences show how the epidemiologists can help WHO to identify the most important health problems and set achievable and measurable targets for them. The paper concludes that epidemiology serves to identify problems, show ways to solve them, monitor the changes in the situation and evaluate the achievements.