Which of these is the most important cause of adult onset epilepsy?
neurocysticercosis
neurotoxoplasmosis
primary amoebic meningoencephalitis
african trypanosomiasis

neurocysticercosis

Explanation:

Cysticercosis is the infection caused by the cystic form of the pig's tapeworm, Taenia solium, and neurocysticercosis is when the central nervous system (CNS) is affected. It is usually possible through direct ingestion of helminth eggs, but it can also occur in a usual infestation (teniasis). It is an endemic condition in several countries in South America, Africa and Asia, accounting for about 29% of the causes of secondary epilepsy in these locations. It can also cause headache, hydrocephalus, meningitis, and even central nervous system infarction.