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Schistosomiasis

Schistosomiasis


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It is also called Schist, or snail disease. She is teased by a worm called schistosomiasis. Worms live in the veins of the intestines and can cause diarrhea, weight loss, belly pain, which increases a lot of volume (water belly), and problems in various organs of the body.

The eggs of the schistosome come out along with the feces of the infected person. If there is no sump or sewerage, they can reach fresh water (lakes, ponds or streams, river banks, etc.). In water, eggs give rise to small larvae (animals other than adult worms) called miracidia. Larvae penetrate a type of snail called planorbid. Inside the snail, they reproduce and become other larvae, the cercariae, which come out of the snail and swim freely in the water.

THE cercaria can penetrate through the skin to people who use water from lakes, ponds, streams and other places to bathe, wash, work, fish or other activities.

In addition to treating the patient with medication, a sewer system must be installed to prevent eggs from reaching the water. People also need to have access to good quality water and to be informed about ways of transmitting the disease.

It is also necessary to combat the snail that transmits schistosomiasis with chemicals and the creation of fish that feed on the snail, such as tilapia, tambaqui and piau. These fish can be eaten by people without risk of contamination.



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