>>My kid gets a measles vaccination. The other 500 kids in his school dont. All 500 come down with measles at the same time and they come to school and play with my kid. Does my kid come down with measles?<<
Probabilities are 93% or so against it. The number of contacts increases the probabilities of course.
While we are posing suppositions, what if your kids play on the freeway during rush hour when the cars are moving slowly. Will they get hit and killed/maimed anyway>
ROTFLMAO
I knew I would get stupid answers replete with incoherent straw man analogies.