My cat had rotten teeth and has a bad disease. PLEASE READ. What would you do?

I have been fostering a 3 year old cat and when I took her she just had her back teeth extracted because of gingivitis. So I took her on Thursday for a check up.....they are keeping her now until next Friday. I cried like a baby when they called to tell me this. I am so attached to her but I am also trying to think of what I'm really doing. They said she had a disease bertenella (i might of spelled it wrong)....so they didnt have to do laser treatment but gave her a high dosage of antibiotics. And the reason they want to keep her is because they want to keep a close eye on her. Now does anyone out there have any experience dealing with a cat with this disease. Is she going to be costing me more money at the vet then a healthy cat? I am suppose to find out details this week coming up. I miss her so much but I am starting to wonder if I should go ahead and adopt her. Will all of this cure her? Or am I going to have a really sick cat all the time.

My cat had rotten teeth and has a bad disease. PLEASE READ. What would you do?
the disease is Bordedellia and its unfortunate she got this disease, ther is a vaccine that your kitty should have gotten which would have prevented her from getting this. However It is not life threatning if treated in time which is being done, so you can go right ahead and get this kitty, she/he needs you more than ever now so dont abandon it.
Reply:if you really love her does it really matter?
Reply:First things first, wait for the vet report and the details. If this is a long term illness and will cost you money on a regular basis you have to decide if you can afford it because yes, it does matter even if you love her. If she needs constant medical attention and you cannot afford it she will suffer. If this is a transient disease or one that can be controlled inexpensively or if you can indeed afford large vet bills by all means adopt her. You obviously love her and would give a wonderful home. When all the facts are in make the best possible decision for yourself and your cat. I wish you the best of luck.
Reply:Do what you can for the cat..I love them too....Adopt her and give her a loving home.........