Quick question: Should I do an hour long yoga class tonight if I am half-recovered from a cold?

This may seem like a frivolous question, but I haven't had a cold in so long and this one knocked me down so much I have not been to the gym all week. I consider myself about half-recovered (have some energy but voice mostly gone, sinus problems and cough intermittently).

So my questions: 1) Is it rude of me to attend a class in this condition, knowing I may spread it (although I intend to keep away from the others) and 2) would I overtax my system if I do a full yoga workout in this condition? I feel I am capable but I don't want to hinder others' experience, put them at risk or set back my own recovery.

Any longtime yoga practitioners want to give me insight on this, since this is the first time these problems have occurred for me? I intend to stay out of the locker room and keep my exercise area away from others.