Scientists think they've found a good way to help you from getting norovirus...which is that really contagious virus that keeps hitting cruise ships and causes awful vomiting and diarrhea.  Just eat pizza.  Pizza gets its flavor and smell from oregano oil, and oregano oil contains a chemical that can help prevent norovirus from spreading.  So before you go on a cruise, eat pizza.....lots and lots of pizza.  I think you can handle that. (U.S. News And World Report)