I had to vaccinated for my program as well. I wear the TB masks on the obvious calls or where the danger is emminent. I wear a surgical mask on a ton of sick patients just not around young shildren since it freightens them not to be able to see your mouth.
Children would most likely be the ones to give you some nasty bug as well as being vulnerable themselves. There are many immunosuppressed kids for a variety of reasons.
When giving neb treatments, its mask time if the clinician is within 5 feet of the child. The same with some adults that haven't been worked up yet.
BTW, don't forget to have your varicella titers checked occasionally and keep your other vaccinations up to date. Even pertussis is still hanging out in some areas.
To keep from frightening the kids, I let them draw a goofy face on my mask while I'm setting up the neb. It gives them a good laugh as I "model" it. I'll also give them another mask to draw a funny face for their parents to model. Of course, this probably won't be with the costly N95 mask. If I wear an N95 around the kids, I'll use the one with purple "nose" button or I'll draw my own art work on the 3M masks for their amusement. Stickers work well also if I'm not feeling artistic.
As far as meningitis is concerned, I've taken more than my share of cipro. Of course, that is better than taking rifampin.
I also keep a small filter to use with the BVM to place between the bag and mask or ETT to prevent spray from the exhalation valve. This not only protects me but also any bystanders or HCWs that we come into contact with.
Usually, in the hospital, if we have a patient who is a R/O TB or meningitis, we may have Security clear the hallway and we'll use our elevator key to ensure no visitors inadvertently come into contact with the patient. The patient will also be wearing a mask.