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Detection of Intestinal Parasites


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Cryptosporidium Antigen Test, Feces

Slide 42

March 2009

The Cryptosporidium antigen test is an enzyme-linked immunoassay, with a sensitivity of 87% and specificity of 99%. This is much higher than what can be achieved by light microscopy, making this a preferred test over the traditional ova and parasite examination.

Fresh or formalin-preserved stool should be submitted, and like all laboratory tests, the results should be correlated with clinical presentation. Due to inconsistent shedding of antigen in feces, the testing of multiple stool specimens may be necessary.

Cryptosporidium Antigen Test, Feces


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