Parasitic worms, also known as helminths, are a polyphyletic group of large macroparasites; adults can generally be seen with the naked eye. Many are intestinal worms that are soil-transmitted and infect the gastrointestinal tract. Other parasitic worms such as schistosomes reside in blood vessels.
Register to update information, save favorites, post photos, news stories and comments.
Register to update information, save favorites, post photos, news stories and comments.