Question

why are medical checkups important?
medical screenings prevent most diseases from happening.
medical screenings may detect some diseases at early stages.
medical screenings make people immune to serious diseases.
medical screenings prevent transmission of bacterial diseases.

Explanation:

Medical checkups (screenings) cannot prevent most diseases, make people immune to serious illnesses, or universally stop bacterial disease transmission. Their key value is identifying some diseases in early, more treatable stages.

Answer:

Medical screenings may detect some diseases at early stages.