Why 17 People Volunteered to Be Infected with Parasitic Worms
When you buy through links on our site , we may garner an affiliate commission . Here ’s how it work . At a university hospital in the Netherlands , 17 students have a tropical parasitic disease . But these individuals are n’t traveller who latterly returned from part of the world where the leech , a type of worm called aschistosome , is usual . Instead , they ’re volunteers ....