Before the MMR vaccine in the 60s children were intentionally exposed to those diseases in addition to Chicken Pox.
Combined, those diseases took about 500-700 people per year in the US.
The 2016-1017 Flu took 80,000 lives in the US.
Yet the nanny-staters insist everyone...everyone...must receive the MMR vaccine to prevent a general pandemic.
Because most of them are either stupid, or completely ignorant of the facts.
The rest have a vested interest.
Oh, and the vaccines generally work.
So if you don’t want your kids to get measles or mumps, get them vaccinated and mind your own business.