You hear breakroom chatter about how Suzy in marketing went home with a stomach bug. Then, before you know it, half your department has come down with something. So you start pushing elevator buttons with your elbow, opening restroom doors with your shirtsleeve, and using hand sanitizer by the gallons. You’re in the clear, right? Not necessarily. The close confines of your workplace may promote collaboration, but they also encourage the dispersal of germs.