Parasitic Diseases, Cestodes (Tapeworms)

Animals Involved

People are definitive hosts; swine, other mammals are intermediate hosts (people can be both definitive and intermediate hosts)

Known Distributions

Worldwide where swine are reared; most cases seen in Africa, Asia, Central and South America

Probable Means of Spreading

Ingestion of eggs (including autoinfection from adult parasite in human intestine)

Clinical Manifestations in People

Inflammation in CNS caused by death of small larva or growth to large size (often years after infection); can cause seizures, other CNS signs; less often in eye or heart; massive numbers in muscles can also be symptomatic

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