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Snails in the Waters, Disease in the Villages

Posted Nov 19 2012 10:31am

Photo of a man examining water for infectious snails in coastal Kenya.

Watch where you jump in for a swim or where your bath water comes from, especially if you live in Africa, Asia or South America. Snails that live in tropical freshwater in these locations are intermediaries between disease-causing parasitic worms and humans.

People in developing countries who don't have access to clean water and good sanitation facilities are often exposed to the infected snails. Then they're left open to the parasitic worms.

The worms' infectious larvae ...

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This is an NSF News item.

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