Add Yahoo as a preferred source to see more of our stories on Google. Again, you can't spot germs like Salmonella or E.coli on food. "While we cannot see, smell or taste pathogens, there are still ...

Again, you can't spot germs like Salmonella or E.coli on food. "While we cannot see, smell or taste pathogens, there are still signs that a buffet might not be for you," says Wade Syers, D.Soc.Sci., ...