on 6.12.08 with 0 comments

The raccoon ascarid Baylisascaris procyonis infects the majority of these animals. Risk factors for infection are exposure to raccoons and pica (geophagy). Adult worms live in the raccoon’s intestines. Eggs are released in the faeces. Ingestion of eggs leads to release of larvae (1600 ┬Ám in length) which are carried by the bloodstream to all organs. In humans, the worms tend to invade the central nervous system and eyes. Approximately 5-7% of the ingested eggs reach the brain, resulting in a visceral larva migrans. Treatment is mainly supportive. Corticosteroids are given to reduce inflammation.

Category: Medicine Notes



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