Can I get a sick day?

I have been trapped inside the house for the last 2 days because of the snow.  The only time I've been outside is to wipe my car of snow, maybe a total of 30 minutes.  And with that said, I got sick.  How does one manage to get sick when they spend 47.5 hours indoors?!  I'm going to try to make it through the work day and then curl up in bed with hot tea and the remote.