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:The Saturday Profile: In Pakistani Fray, Maryam Sharif Is on the Edge of Power, or PrisonGang Attacks Pakistani Journalist Critical of MilitaryCost of Volkswagen Scandal Could Hurt Company’s Electric Vehicle PushCatalonia’s Independence Showdown With Spain, in PhotographsAlibaba Co-Founder Joseph Tsai Said to Buy Brooklyn Nets StakeSubaru Admits Inspection Failings, in Another Blow to Japan’s Carmakers