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Giardiasis is an intestinal infection caused by the parasite Giardia. You may become infected by ingesting contaminated food or water. Exposure to the stool of someone who`s infected can also cause infection.
When to Go to the Emergency Room (ER)
Get medical help for severe symptoms that include:
Stomach bloating or fullness
Nausea or vomiting
Unplanned weight loss
Blood in your stool
What to Expect in the ER
You will be examined and will likely have a stool culture. This checks a sample of your stool for the parasite that causes the disease. If giardiasis is suspected or confirmed, you may be prescribed medication that you take for 5 to 7 days. In many cases, this clears the infection.