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Causes of Toxocariasis
When the eggs are swallowed, they hatch in the intestine. The juvenile worms burrow through the wall of the bowel into the bloodstream.
They are then carried to every part of the body and can remain alive in the tissues for many weeks, where their movement produces tracks of bleeding.
Eventually they die. At the sites of death, small abscesses and collections of fibrous tissue and new blood vessels (granulomas) occur. In some cases, live juveniles may remain walled up for years, only to resume their movements at a later date.









