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Old 02-24-2017, 03:38 PM   #34
billybob123
Powerplay Quarterback
 
Join Date: Sep 2010
Location: Calgary, AB
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Mumps outbreaks can happen even in vaccinated populations. There are several reasons it can happen, and none of them have anything to do with ineffective vaccination. I suspect these players have all been vaccinated.

It's a very infectious virus.
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