Soil-transmitted helminth reinfection after anthelmintic treatment in schools with improved versus unimproved WASH infrastructure in Mozambique: a prospective cohort study.
Background Soil-transmitted helminths (STH) infect more than a billion people worldwide, disproportionately affecting communities with poor water, sanitation, and hygiene (WASH). Mass drug administration is the primary control strategy, but reinfection frequently occurs within months of treatment, and the extent to whi...