Protozoa

Protozoa are single-celled microorganisms that can be found in virtually any aqueous environment and in many types of soil. They are too small to be seen by the naked eye, but are easily seen with a microscope.

Although some protozoans can cause illness by themselves, they may also be involved in spreading bacterial infections. Protozoans feed on bacteria, and as such may cause contamination of things they come in contact with. Research has indicated that protozoans may have contributed to outbreaks of food borne illnesses from meat and produce. Science Daily:Free-Living Protozoa Found In Meat-Cutting Plants (September 30, 2008) Science Daily: Protozoa May Enable Food-Borne Pathogens On Leafy Vegetables (April 27, 2008)

• Amazon.com: Books and Merchandise

• Alibris: Protozoa Books

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