I have lived in Cairo Egypt for many years, and apart from a few problems when I arrived, I cannot remember any stomach, cramp problems in recent times. Nor do other resident persons as the topic rarely comes up. BUT, tourists and Newbies can experience some pretty bad problems that can ruin their vacation, or initial time here after arrival.
Thanks to David L................. And below David's is Charle"s............. both real life experiences to explain their problems and successful treatments
As late entry - my daughter is in Scotland - July 2008 - and told me she came down with cramps and stomach problem after a day out at festival and junk food. So........ the bugs are different everywhere!!!!!
Note: if diarrhea persists when you get home, see a doctor for tests and treatment quick as you can, as you can expect you picked up a nasty bug. The normal bug should only last a few days.