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Bilharzia - Coggle Diagram
Bilharzia
Clinical manifestation
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•Katayama fever-the body’s reaction to the worms' eggs or a systemic hypersensitivity reaction that may occur weeks after the initial infection,
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•Abdominal pain-lodged eggs in the intestinal wall or inhabit of the parasite in the inferior mesenteric plexus
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Objective data
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•Liver enlargement -associated with an accumulation of fluid in the peritoneal cavity and hypertension of the abdominal blood vessels.
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Definition
The disease is caused by trematodes of the genus Schistosoma, which cause periportal fibrosis and liver cirrhosis owing to deposition of eggs in the small portal
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Mode of transmission
Freshwater snails – penetrate the skin during contact with infested water.
●Transmission occurs when people suffering from schistosomiasis contaminate freshwater sources with their excreta containing parasite eggs, which hatch in water.
In the body, the larvae develop into adult schistosomes.
•Adult worms live in the blood vessels where the females release eggs.
Some of the eggs are passed out of the body in the faeces or urine to continue the parasite’s lifecycle.
Others become trapped in body tissues, causing immune reactions and progressive damage to organs.
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