| http://www.w3.org/ns/prov#value | - A doctor may order the test if your child has symptoms such as watery diarrhea, abdominal pain, large amounts of intestinal gas, appetite loss, and nausea or vomiting, especially if there is been an outbreak of giardiasis at your child's school or daycare center, your child recently drank untreated water, or if your family recently visited a developing country.
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