Trilobites: They’re Hosting Parasitic Worms in Their Bodies to Help Treat a Neglected Disease 17 healthy volunteers were paid to help prove a method of testing vaccines for schistosomiasis, which can be lethal, but some researchers are conflicted about the trial. Share: Facebook Twitter Google+ Stumble Digg Email ThisBlogThis!Share to XShare to Facebook Related Posts:Pompeo and Palestinians Have ‘Nothing to Discuss’ Amid Gaza CrisisThe Gazan at the Fence: ‘Death or Life — It’s the Same Thing’Spanish Judges Return Fire After Controversial Sexual Assault RulingCaravan of Migrants, After Arduous Trip, Begins Final Push to BorderMike Pompeo Expresses Support for Israeli Response to Gaza ProtestsSyria Missile Strikes Reportedly Kill at Least 16