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Nonpathogenic (Harmless) Intestinal Protozoa

Nonpathogenic intestinal protozoa are single-celled parasites that are commonly found in the intestines but never cause illness. These protozoa are harmless and do not require treatment. For more information, see our Fact Sheet.

 

Fact SheetNonpathogenic (Harmless) Intestinal Protozoa

 

 

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This page last reviewed February 7, 2008

Centers for Disease Control and Prevention
National Center for Infectious Diseases
Division of Parasitic Diseases