Can a dirty house cause rejection?

My GF had her transplant last February. A couple months ago, she was diagnosed with A1 rejection. They gave her steroids, and she went down to A0 rejection. A month later, her Bronch showed that she had gone up to A3 rejection. They tested for a virus related to mono, they tested her stomach with radiation to check aspirations. Still no evidence as to what could be causing her rejection. Now, for the main part. My roommates don't clean the house, and I am too busy to single-handedly keep up with all 5 of us regularly. There is mold all over my roommates' bathroom, there is mold and bacteria in the kitchen, and dust builds up in layers in the common rooms. Also, the carpet is possibly 30+ years old. My GF spends a LOT of time at my house. Is it possible that these conditions have given her lungs this rejection that they have? Thank you in advance for your help, Alex
Source: Cystic Fibrosis Transplants Forum - Category: Respiratory Medicine Authors: Tags: Transplants Source Type: forums