a set of helminths. roundworm, ascaris, pinworms, bovine tapeworm, pork tapeworm, whipworm, liver fluke. infographics.

anatomy animal ascariasis ascarid ascaris biology care cat diagram disease dog flat flatworm fluke group health healthy heart helminth hookworm human hygiene illness infection internal intestinal intestine larva liver medical medicine nematode parasite parasitic picture pinworm roundworm scheme schistosomiasis science set symbol tap tapeworm tract trematode type vector whipworm worm