So it's flu season, right?
And the flu germs just follow you around everywhere....
People are coming to work sick, sniffling, slobbering and coughing all over the telephone in the lab, touching the same keyboards, doorknobs, cabinets..... as you have to. Gross.
You could stay home, but that probably won't help either. You have to go somewhere, even if it's just to the grocery store or the library. And the germy, sneezy, slobbery people are there too.