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What Are the Different Types of Parasites?

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So we typically think of two types of parasites, the kinds you can see and the kinds you cant. Microscopic parasites are mostly protozoa and the two common ones in the US are cryptosporidium and giardiasis. Giardia and crypto are commonly found in municipal water supplies here in the United States, we estimate about two and a half to three million cases of giardia and crypto each year, here in the US.

The types of parasites you can see consist of round worms and tapeworms and as you know tapeworms can grow to extraordinary long lengths to several feet in the intestines.