How party dips can give you Norovirus and even HERPES (and sour cream is the worst for spreading bacteria) Microbiologists reveal double dipping can spread bacteria very quickly Even a small amount of someone's saliva in a dip will allow germs to multiply Bacteria in runny dips like sour cream will multiply by up to 100 times But it won't grow very quickly in thicker dips such as houmous, it's said It's not a party unless there are some chips and dip on the table, but these tasty nibbles could be hiding some very dangerous bacteria, an investigation reveals. Norovirus,...