Follow These Tips to Prevent Montezuma's Revenge, an Unwelcome Souvenir
It is common for people who travel to foreign countries, especially
developing countries, to suffer from diarrhea.
To protect yourself, avoid raw foods such as salad, uncooked vegetables,
and fruit (unless you peel it yourself), unpasteurized milk or milk products,
raw meat, and shellfish, and be sure to drink bottled water or other beverages
with a label on it.
If diarrhea is severe or bloody, lasts for several days, or is accompanied
by fever or chills, you should seek medical attention.