Mobile Site ›

Detection of Intestinal Parasites


Receive notification when new Hot Topics are published:

Less Common Fecal Parasites

Slide 44

March 2009

So to summarize, Giardia intestinalis and Cryptosporidium species are the most commonly encountered fecal parasites in the United States, and the test of choice for these organisms is an antigen test performed by an enzyme immunoassay. For this reason, we advise against ordering a routine stool ova and parasite examination unless the patient has a history that may suggest a different parasite.

It is important to mention that other fecal parasites may occasionally be encountered in the U.S. These include:

  • Cyclospora cayetensis
  • Microsporidia spp
  • Entamoeba histolytica
  • Intestinal helminths. All except Microsporidia are rarely encountered in the United States, and are seen primarily in travelers to and immigrants from endemic areas

Less Common Fecal Parasites


Jump to section: