The human whipworm<unk>  or Trichocephalus<unk>  is a round worm (a type of helminth) that causes<unk> sis (a type of helminthiasis which is one of the neglected tropical diseases) when it infects a human large intestine. It is commonly known as the whipworm which refers to the shape of the worm; it looks like a whip with wider "handles" at the posterior end.
Trichuris trichiura
Ascaris lumbricoides
Oesophagostomum
Schistosoma mansoni
Onchocerca volvulus
Strongyloides stercoralis
Trichinella spiralis
Ancylostoma duodenale