People feeling sick should stay home.
It's the conclusion of a new study by researchers at Cornell University, which finds that ill people coming to work just make things worse. It says they reduce productivity and drive up already-high health care costs
Researchers call the condition "presenteeism," and blame it for up to 60 percent of the total cost of worker illness for an employer.
The Cornell report is published in the April issue of the Journal of Occupational and Environmental Medicine. It was conducted for the university's Washington-based Institute for Health and Productivity Studies.