You knew it was only a matter of time. You wake up one morning with a pounding headache and a throat that feels like sandpaper. You force your aching limbs out of bed and take your temperature. As the mercury rises to 100 degrees, you contemplate whether or not you should go to work. You have a big meeting that day, so you decide you have to go. Plus, you rationalize that you can always leave after the meeting if you're still feeling ill.