CJ, for the past couple of years anyway I just ride in if I'm well enough to be at work. I didn't come to it deliberately. My habit is out the door quickly, 20 minutes from waking up and I'll be halfway there before I realize that maybe I should have stayed home. But, sometimes the ride seems to actually help.

I agree with you about the bus. Even if I didn't mind it at the best of times, there's no telling what you might catch there when your immune system is already hammered.