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Introduction to Extraintestinal Protozoa

By Richard D. Pearson, MD, University of Virginia School of Medicine

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Protozoa are single-celled organisms that occur worldwide. Many of those that cause extraintestinal infections are transmitted by arthropod vectors. These arthropod-borne infections include African trypanosomiasis, babesiosis, Chagas disease, leishmaniasis, and malaria. Toxoplasmosis is acquired through contaminated food. Free-living amebas are acquired through contact with surface water or soil.

* This is the Professional Version. *