If you're going to a developing country, do not drink the tap water. If you must use local water, filter it first or use a water purification product. Then boil it for five to 10 minutes.
Purchase bottled water at home before you leave on your trip and use it for everything you do, including brushing your teeth and taking your vitamins. Water that has been bottled locally is not always safe.
Avoid street vendors and choose only indoor, reputable restaurants. Even here, do not drink the water.
Do not eat raw fish of any kind and make certain that other meats, including poultry, are well-cooked.
Wash your hands before eating and after using the restroom.
Wash and peel all fruit before you eat it. Fruit with a thick skin, such as oranges, is often safer than fruit with thin skin, such as apples.
Boil milk for five to 10 minutes before you drink it.
