What is Schistosomiasis and where it is developed?

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Dr Girija Sankar's picture

Schistosomiasis is caused by trematode belonging to the genus Schistosoma. It is also known as Bilharzia. The larvae (life cycle in snails) develop into adult in the blood vessels of humans. The females shed the eggs out of the body in urine and faeces. The disease spreads while swimming or playing in contaminated waters. Ref: http://apps.who.int/tdr/svc/diseases/schistosomiasis accessed on 23rd Jan 2011.

Dr.G.Girija Sankar, Associate Professor Department of Pharmaceutical Biotechnology, College of Pharmaceutical Science, Andhra University.

K Rajakrishna's picture

Schistosomiasis is infection with a type of Schistosoma parasite.You get a schistosoma infection through contact with contaminated water. The parasite in its infective stages is called a cercaria. It swims freely in open bodies of water. On contact with humans, the parasite burrows into the skin, matures into another stage (schistosomula), then migrates to the lungs and liver, where it matures into the adult form. The adult worm then migrates to its preferred body part, depending on its species. These areas include the bladder, rectum, intestines, liver, portal venous system (the veins that carry blood from the intestines to liver), spleen, and lungs. Schistosomiasis is not usually seen in the United States. It is common in many tropical and subtropical areas worldwide. This infection is usually treated with the drug praziquantel. If the infection is severe or involves the brain, corticosteroids may be given. reference: http://www.nlm.nih.gov/medlineplus/ency/article/001321.htm

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