RFK Jr. had a brain worm. How do you get one and what are the symptoms?

(NEXSTAR) – Independent presidential candidate Robert F. Kennedy Jr. once had a parasite that caused him brain fog and memory loss, it was revealed Wednesday.

Kennedy, now 70, began noticing issues in 2010, complaining of short-term and longer-term memory loss. He was originally concerned he had a brain tumor, and when he got checked out, there was a dark spot visible on brain scans, the New York Times reported.

According to a 2012 deposition reviewed by the Times, Kennedy...