The<unk>  are a family of nematodes in the superfamily Filarioidea. This family includes some of the most devastating human parasitic diseases, such as lymphatic filariasis, onchocerciasis, loiasis, and other filariases.
Onchocercidae
Schistosoma
Trichostrongylus
Echinostoma
Anisakis
Trichinella
Anorchia
Microfilaria