How might giving a mumps vaccine to a boy help protect his reproductive health later?

Vaccinating a boy against mumps can help protect his reproductive health because mumps can lead to complications such as orchitis, which is inflammation of the testicles. This condition can result in pain, swelling, and potentially long-term effects on fertility if not treated properly. By receiving the mumps vaccine, the risk of contracting the virus and subsequently developing these complications is significantly reduced, thereby safeguarding his reproductive health in the future.