The rest of the civilized world has solved this problem, it's called paid sick leave.
That's *IF* the sick coworkers take it. I know far too many people that come in sick because, "They don't want to get their spouses and children sick."
So instead, they and their hacking cough come into the office and put 100s of other families at risk. I wonder if this stems from when they were children and their mother told them, "You're not sick enough to stay home."