If the illness can be masked (i.e. not strep throat, cold or flu with symptoms that can be subdued), many hobbyists won't ever bring it up. Sad but true.

A responsible provider will take some sick time off, even at the expense of lost income.

If either party is able to track something contagious back to one another, I don't even want to imagine the aftermath.

I gargle with Apple Cider Vinegar morning and night
I brush my tongue and teeth with PEROXIDE after each appt
I add lemon to a glass of water EVERYDAY
Most providers dont have insurance BUT there are HOLISTIC WAYS to take care of yourself.
As a provider, we Must take PRECAUTIONS so that even if we encounter someone who is sick, that our immune system can fight for US.
Personally, I havent caught the common cold in 2 and a half years but I couldnt imagine seeing a gent while sick Im a BIG BABY when i get sick and thats NOT SEXY.