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Definition of Protozoa
Protozoa: A single-cell organism that can only divide within a host organism. Malaria is caused by a protozoa: Plasmodium. Other protozoan parasites Giardia and Toxoplasma.
Source: MedTerms™ Medical Dictionaryhttp://www.medterms.com/script/main/art.asp?articlekey=5091
Last Editorial Review: 3/26/1998 2:28:00 PM
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