The most common intestinal protozoan parasites are: Giardia intestinalis, Entamoeba histolytica, Cyclospora cayetanenensis, and Cryptosporidium spp.
What are the 3 most common parasites?
There are three main classes of parasites that can cause disease in humans: protozoa, helminths, and ectoparasites.
What are common intestinal parasites?
Intestinal parasites that remain prevalent in the United States include Enterobius vermicularis, Giardia lamblia, Ancylostoma duodenale, Necator americanus, and Entamoeba histolytica.
What is the most common parasitic disease?
Some people think of parasitic infections, like malaria, as occurring only in developing countries or in tropical areas, but parasitic infections exist in North America as well. The most common ones found in North America include Giardia infections (through contaminated water) and toxoplasmosis (spread by cats).
Which parasite is the most common cause of intestinal infection in the US?
Giardiasis is a diarrheal disease caused by the parasite Giardia duodenalis, the most common cause of intestinal parasite infections in the United States. Transmission occurs when Giardia cysts spread from feces to water, food, surfaces, or skin and are then ingested.
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