Walking-Around-Sick: Setting/Character

He'd never thought he'd be happy to be walking-around-sick. It had always struck him as the worst of all possible states--either you were sick, really sick, sick enough to stay home from work and be taken care of and not worry about anything except getting healthy, or you were healthy enough to do anything you liked. That was the way it should be. He'd announced this fact loudly whenever he happened to be walking-around-sick, which was a lot more often than anybody else seemed to be. He didn't catch illnesses too much more than others did, he supposed, but he seemed to stay in the indeterminate in-between stage longer. He didn't need a week off work--just a day or two, and then the rest of the time he'd be walking around, going to work, and feeling entirely out--

Inspiration: Could it be that I'm sick of being mostly sick?
Story Potential: High, at least as character set-up.
Notes: So he's walking-around-sick with something that has almost everybody else flat out. I do have a certain attraction to plague stories, don't I? I blame Steven King--the first part of The Stand is sheerly brilliant.