These worms live in the guts (intestines) and their eggs pass into soil from human waste (faeces) when infected humans defecate outside or when human waste is used as a crop fertiliser. They are one of the commonest infections worldwide, especially in hot, humid areas where sanitation and hygiene are poor.
Where do you find parasitic worms?
Parasitic worms, also known as helminths, are 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.
Where do parasites usually live?
A parasite is an organism that lives on or in a host organism and gets its food from or at the expense of its host. There are three main classes of parasites that can cause disease in humans: protozoa, helminths, and ectoparasites.
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