Comment: The CDC reports that there are about 20 million cases of Norovirus in the U.S. every year, a large fraction of them from restaurants.  "Infected food workers are frequently the source of these outbreaks, often by touching ready-to-eat foods, such as raw fruits and vegetables, with their bare hands before serving them."  Using gloves is no panacea, true, but it will help.  What would help even more would be a requirement that food workers be given paid sick leave.  Food workers are generally poorly paid as it is, and it is a hardship for them to take off from work when they are ill, so they have a strong incentive to come to work even when ill.  Many outbreaks of Norovirus are traced to this kind of situation.