I think I would seek clarification from my doctor. It is possible that one or the other of you misunderstood something...and maybe I have, too. But you are right, in your line of endeavor, as I understand it, you may be at a slightly more increased risk of TB than the average person...just as I have always been in terms of working in the hospital environment.
Ain't no place safe! If something doesn't get us in one place, something else will in another place! Yikes! (and right now, I'm dealing with the dust bunnies in my house...they are trying to get me in a serious way!

)
- EBF