Quote:
Originally Posted by Sephiroth
How does an "antivaccer" catch measles?
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They don’t; their children do.
MMR is 99% effective, which means one in every 100 people is relying on herd immunity to be protected against measles and the others, because the vaccine didn’t protect them directly. If a further 10 people per 100 haven’t been vaccinated, then with an R rate as high as 12-18, measles will find its way to all of those who weren’t vaccinated and also those for whom the vaccine didn’t work, fairly easily.