WHO Collaborating Centre BEL-42 Ghent University
Background: The soil-transmitted helminths (STHs) are a group of intestinal worms that infect humans through the contact with worm eggs or larvae present in the soil (referring to their common name). The four main STHs are Ascaris lumbricoides, Trichuris trichiura, and two hookworm species, Necator americanus and Ancylostoma duodenale. In 2010, it was estimated that 1.4 billion people were ...