When I was at the doctor the other day, they wanted to determine the cause for repeated infections in my nose/ear piercings. They did a nasal swab and I did not realize they were testing for MRSA, if I would've known this, I would have refused. I know it is very common and not a big deal, but if I know I am a carrier/infected, do I have to disclose that to my employer? If so, what do they do about it? Has anyone had MRSA and still been able to work?