Neurologist, Man you really need to educate yourself harder. Your ignorance and your logic are way so off that it gave me flu. It is all about probability. If all of the kids in class gets vaccinated then chances of spreading is almost 0%. But if 1 child is not vaccinated then probability of spreading gets increased. Who said vaccines will 100% prevent getting disease? Dude don't watch those stupid consipracy channels on youtube. I am ending this discussion with you right now and will not respond any further because like everyone says I don't want to waste my time debating with stupid.