Do not save leftovers and eat them later. Bottled water and soda. Water is commonly a source of illness when traveling in foreign countries. Consumption of water can cause illness from drinking the water, eating fruit and vegetables cleaned with the water, using ice in drinks, while brushing teeth, or taking a shower. Many countries do not have the capability to treat water as we do in the U.S. Bottled water is always a better selection than tap water, and bottled water is available in most countries.
Some travelers take purification tablets or boil water during travel.
Purification tablets and additional information are available at your local camping supply store. Soda is a great alternative for safe drinking. It can easily satisfy a thirst and is too acidic for harmful microorganisms to survive. This publication includes suggestions for travelers while visiting in foreign countries. Many precautions can be taken prior to traveling such as purchasing foods that you know are safe, and that you enjoy.