I’ve been battling a cold over the last few days, and if with all those deadlines looming at work, I had a tough time deciding whether I should go to work or sleep it off at home. You don’t want to pass the cold on to your co-workers, but on the other hand, you don’t want to appear to be a slacker.

This is a pretty common question, and this article from MedicineNet seems to be the best I have found on the subject.