Giardiasis (pronounced "jee-ar-DYE-uh-sus"), or giardia, is an infection of the intestines caused by the parasite Giardia lamblia. You may become infected with giardia if you eat food or drink water that is tainted with human or animal waste. You can also get giardia by coming into close contact with an infected person. The illness is most often a problem in developing countries where tap water is not safe; but you can get giardiasis in developed countries, too. In the U.S. and Canada, you can get giardia by drinking untreated water from wells, streams, rivers, and lakes. This is true even in mountain lakes and streams, where the water may seem pure. Follow the links below to find WebMD's comprehensive coverage about how giardiasis is contracted, what it looks like, how to treat it, and much more.
Water Purification to Prevent Giardia-Topic Overview
The cold,clear water found in mountain streams and lakes may look appealing but often contains Giardia lamblia,the parasite that causes giardiasis. On short hikes,you may be able to carry from home enough water to drink. But when you are camping and backpacking,you often need to use other water sources. Water from pumps in campgrounds is usually safe,but if a sign tells you that the ...
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