A national public health service.

The development of the British public health services is briefly reviewed and it is suggested that two types of epidemiologist (Community Physician) are necessary in each locality: one concerned with medical administration and health care planning-the medical administrator, and the other with the prevention of disease-the clinical epidemiologist. A new nation public health service is proposed to revive disease prevention with four main features: (1) A district Clinical Epidemiologist who is a member of the district department of community medicine with responsibility for prevention but with no district administrative duties. (2) A District Epidemiology Unit comprising other appropriate staff. (3) National specialist epidemiology units within the NHS with service roles to support and coordinate the District Clinical Epidemiologists. (4) A national authority within the NHS with responsibility for prevention and for administering the national specialist units.