A helminth is a parasitic worm that lives in or on a host and may cause disease.
Human helminths are commonly divided into three major groups: nematodes (roundworms), cestodes (tapeworms), and trematodes (flukes). They can inhabit the intestine, blood vessels, tissues, or other parts of the body.
Helminth infections can be acquired through contaminated food or water, contact with contaminated soil, insect vectors, undercooked animal products, or other routes depending on the species.
QUICK FACT
Helminth is the technical term for a parasitic worm. It is not a synonym for every type of parasite because parasites also include organisms such as protozoa.
COMMONLY CONFUSED WITH
Protozoa: Protozoa are microscopic single-celled organisms, while helminths are multicellular parasitic worms.
SEE ALSO