I'd also like to add that if you get a mask and at least 10 feet away from them it's just fine for you to meet and talk with them. I did a study with other CFers. We even exercised together (with masks on.) So next time you're sitting in the CF clinic waiting room, ask for a mask and then strike up a conversation by asking the other person in the room if they have CF. (You already know they do because of their clubbed fingers. <img src="i/expressions/face-icon-small-smile.gif" border="0"> ) I love to find out what type of breathing treatments they do and what meds they are on! <img src="i/expressions/face-icon-small-smile.gif" border="0">