From what I understand, they are partially paralyzed. Every partially paralyzed individual I have personally met was pretty ill, basically. I have a compromised immune system. Being around paralysis victims is a big problem for me.

So, yes, I feel quite confident. Though what I know and what I can prove are very different things.

Edit: I will add that I have come to believe that breathing problems inherently impair the immune system. Oxygen is one of the things the body uses to kill stuff. If you can't breathe, you are pretty vulnerable to microscopic warfare. (Another thing I know but probably can't prove, fwiw.)