The testing of a large group of people for the presence of a disease or other condition.
 the government says mass screening is needed to plan long-term care
 Example sentencesExamples
-  One cardiac specialist believes mass screening for children involved in competitive school sports could be introduced.
 -  Mass screening for lung cancer has just recently been introduced nationwide.
 -  Mass screening of men with asthma in and around Bolton has been carried out.
 -  A respiratory physician calls for mass screening of asbestos victims.
 -  The per-test cost would be affordable for mass screening in developing countries.
 -  A public health policy of mass screening for ovarian cancer may not prove feasible for several reasons.
 -  We performed a radiographic examination of heavy smokers identified as belonging to a high-risk group during mass screening for lung cancer.
 -  Mass screening of air and rail passengers has been introduced in China.
 -  Prison officials say the mass screening of condemned inmates will help identify inmates who qualify for extra help in their daily lives.
 -  There is no mass screening of players.