by Swiss Tropical and Public Health Institute Male Trichuris trichiura. Credit: Leonardo M. Lustosa/Wikimedia Commons, CC BY-SA Soil-transmitted helminth infections are caused by different species of parasitic worms, including whipworms, hookworms and roundworms. Worldwide, more than 1.5 billion people are infected with at least one soil-transmitted helminth, with most of the infected population living in low- and...
