I suggest that you talk to a lawyer and/or HR before making any mention of other employees's medical conditions to anyone. Also, remember that you're a manager

I suggest that you talk to a lawyer and/or HR before making any mention of other employees's medical conditions to anyone. Also, remember that you're a manager, not a doctor and not a friend. Getting emotionally invested beyond your job role will hurt more than it will help. There is only so much of you to go around, and without proper training in handling this sort of problems you will run out of your own sanity in short order.