2024 Yes https://doi.org/10.1371/journal.pone.0292146 Aribodor, Ogechukwu B. Africa Observational Epidemiology Study Students Middle/Jr High (6-8) Parasites Other This study found 35.2% soil-transmitted helminth prevalence among 443 Nigerian adolescents, mainly Ascaris. Key factors included class level, parental literacy, and toilet type. Findings support expanded deworming and improved sanitation and hygiene.