Helminths
(Worms) (parasite)

Helminths are metazoal (multicellular), worm-like parasites. They are classified into three phyla: thorny-headed worms (Acanthocephala), which are less relevant to humans, roundworms (Nematoda) and flatworms (Platyhelminthes). The latter have two classes: flukes (Trematoda) and tapeworms (Cestoda).

The worms cause helminthiasis; the symptoms depend on the type of worm eliciting the disease.

The main transmission paths is direct or indirect contact with contaminated persons or objects.

For a successful inactivation of parasites, specific disinfectants effective against parasites are required.