Protozoan infections are typically spread by

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Protozoan infections are typically spread by the fecal-oral route, which occurs when fecal matter from an infected individual contaminates food or water that is ingested by another individual. This is a common route of transmission for protozoa that cause diarrheal illnesses, such as Giardia and Cryptosporidium. The other options (respiratory route, blood transfusion, and body fluids) are less common routes for the transmission of protozoan infections.

Protozoan Infections Are Typically Spread by