Hi, my son has cf. I take care of my mother n law who has COPD and respiratory failure. She has been going down hill for over a week. She had to be put on a respirator She just had a sputum culture that tested positive for MRSA. I am very concerned for her and now so for my son. Should I be concerned that he has been exposed to this? He has been around her daily for over 2 years. I am not sure how long she has had this, but I would guess awhile. I am new to CF and wondering if he would need to be treated to be safe. Should I call his CF Clinic on Monday and ask or am I being overprotected. I am just concerned because he has alot going on right now. He will be getting a feeding tube and we just found out he has an abnormality on his left kidney that has to be evaluated. Any information will be greatly appreciated. Thanks Janelle