<unk>  is a nematode (roundworm) that infects many vertebrate animals including humans. Infection of<unk> , like many species of<unk>  causes the disease<unk> asis due to the migration of immature worms in the tissues.
Gnathostoma hispidum
Angiostrongylus cantonensis
Oesophagostomum
Ancylostoma braziliense
Pygeum africanum
Trichuris trichiura
Onchocerca volvulus
Paragonimus westermani