The NCAA mats can't be blamed for Jon Jon Millner's staph, which reportedly is also very serious. I believe he has had one surgery, and may still get some in the future.
Maybe it has become more of an issue this year? Remember Teske missed a good amount of time.
I have had staph several times and MRSA at least once. The MRSA could have been bad, but I caught it right away. On day 1, I am sure I was contagious, but I'm fairly certain I would have passed a skin check. Day 2 I was in the emergency room.