How Do Parasitic Worm Infections Spread?

Parasitic worm infections (helminthiases) spread through several transmission pathways, depending on the species. Soil-transmitted helminths such as Ascariasis and Hookworm infection spread when people ingest eggs from contaminated soil, food, or water. Schistosomiasis spreads through skin contact with freshwater containing larval parasites released by infected snails. Taeniasis occurs after eating undercooked meat containing cysts. Poor sanitation, unsafe drinking water, and inadequate hygiene accelerate transmission cycles. Preventive strategies include handwashing, proper cooking, sanitation infrastructure, and periodic deworming. In some settings, access to treatment options such as nitazoxanide wholesale supply supports broader parasite control programs.