Human Intestinal Parasites

 

There are three types of intestinal human parasites that have the ability to live inside the small and large intestines: roundworms, tapeworms and protozoa.  There are certain types that will stay within the intestines but others will travel outside and unfortunately invade other organs of the body.  There are some that are extremely small that can only be seen under a microscope but there are some that can be up to a foot long.

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