To decide to go to work or not, Dr. Alley says to ask yourself "are you reinfectious or not? Can you give what you have to someone else?
What happens if you are the healthy one going into the germ-filled office full of coworkers?
"If you're around someone with a cold and you want to avoid getting a cold, keep your hands away from your face," Dr. Alley said.
Prevention is always the key.