Travel health

Schistosomiasis

Schistosomiasis, also known as bilharzia, is a parasitic disease caused by Schistosoma worms. It spreads through contact with freshwater contaminated by infected snails, leading to chronic illness if untreated.

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Overview

Schistosomiasis is a waterborne disease primarily found in tropical and subtropical regions. It occurs when parasitic larvae penetrate human skin during activities like swimming or wading in contaminated water. Once inside the body, the parasites mature in the blood vessels, causing organ damage over time. Schistosomiasis is a leading cause of chronic illness in endemic areas, affecting millions of people worldwide.

Risk areas

Sub-Saharan Africa, including countries like Nigeria, Tanzania, and KenyaParts of South America, the Caribbean, the Middle East, and Southeast Asia

Risk for travellers

Travelers engaging in freshwater activities such as swimming, bathing, or fishing in endemic regions are at risk. Those visiting rural areas, working in agriculture, or spending extended periods near contaminated water sources face higher exposure. Proper preventive measures, including avoiding freshwater contact, are essential to reducing the risk.