screening
the widespread use of a simple test for a disease in an apparently healthy population, to see the positive and the negative outcomes.
screening programs
an organized system using a screening test among people without symptoms of a disease to identify early cases in order to improve the outcomes.
opportunistic screening
screening test
like a cheap and affordable test used to a huge amount of people in a population to identify people at risk of the disease and will then further go into a diagnostic test after.