Protozoan Parasites: Characteristics, Diseases, and Prevention

Protozoa: An Introduction

Protozoa are unicellular organisms. Some may be parasitic. They have core mitochondria, are eukaryotic, feed by phagocytosis, and reproduce by bipartition. Their vegetative form is the infective trophozoite cyst.

Entamoeba histolytica

Kingdom: Protista. Family: Entamoebidae. Genus: Entamoeba. Species: Entamoeba histolytica. It is an anaerobic eukaryotic parasite that lives in the lumen and the wall of the intestine. Its reservoir is humans only. It is found in three forms:

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