From what I've read the cause is almost always the result of contaminated water and it's almost always contamination from fecal matter due to a lack of adequate sanitation. There are probably lots of different pathogens that cause those kinds of problems but I think e coli is pretty much the most common, followed by salmonella. Everybody's immune system is different. My folks go to Mexico a lot and my dad loves the street venders. My poor mom seems to get sick every time they go! I've only ever gotten sick once while traveling and it was in Morocco. We were told to be especially careful of eggs or mayo because of no refrigeration, but when the hotel served fried eggs at breakfast they just looked so good...


I can never remember which is better . . . safe? . . . or sorry?