Public health advocates estimate that a third of the people on earth are infected with parasitic worms, called helminthes, particularly in poorer areas with inadequate sanitation. (scientificamerican.com)
This group is working on comparative analysis of parasitic helminthes to identify conserved and / or taxonomically restricted proteins that may prove useful as antiparasitic drugs. (massgenomics.org)
The only difference here is, hookworms and Strongyloides are soil transmitted helminthes, and schistosomes are water transmitted. (deniseminger.com)