Coughing, spluttering, sneezing and sniffling have struck U.S. workplaces with a vengeance. That's the sign that flu season has started, though it's usually the common cold that causes the most misery
and missed work days
. The majority of sick Americans, 55, percent, put their hot lemon, hot water bottle and tea to one side and head out the door to work anyway, according to a report
by the NPR, the Robert Wood Johnson Foundation, and Harvard T.H. Chan School of Public Health.