Welcome to the Screening Website of the Public Health Department. This website provides information and advice on several aspects of screening.


Screening is a public health service in which the health service invites members of a defined population, who have no symptoms or other reason to believe they are unwell to come forward and be tested for the presence of a disease.

Screening populations for disease is fundamentally, philosophically and functionally different from detecting disease in a patient and has important ethical differences from everyday clinical practice.