I know a couple of people who have had very upset tummies over the last few days....... put it down to dehydration, over eating and drinking.....but became a victim of the bug yesterday - definitely not over eaten and no alcohol ......... pharmacist sold me some loperimide and feeling a bit better today - my husband has come home tonight and told me that lots of people have been to the hopsital with it and that they are advising people not to drink tap water unless it is boiled - not sure whether this is another Calis myth or fact. Anyway thought I would pass it on just in case. If you are one of those people who have been to hospital perhaps you could clarify what you have been told. Thanks