Ok, This is a weird question, but here it goes. My sister had contact with a person that is a pathologist and head at a prestigious hospital through her job. She told him it is fun coming to our house because we have lots of bunnies (11). He told her that isn't good. She asked if it was because of respiratory issues, he said yes but that it also increases your chances of lymphoma ( in the humans). As anyone ever heard anything about this? Of course now I am concerned. My rabbits are all kept indoors, all spayed or neutered, fed good quality hay, pellets and greens, and I clean their areas everyday. I did see studies saying there is an increase risk of lymphoma in poultry farm and beef cattle farmers. But is that really the same as keeping rabbits as pets?