according to Doctors!
How do you get brain worms?
When people ingest microscopic tapeworm eggs, they hatch and become larvae that can infest various organs including the brain, muscles, liver and other tissues.
"The way this typically would happen is you have the parasite eggs in feces and then you're having food or water — your hands are contaminated with that — and that's how you end up with that," Gounder said.
Kennedy said in a 2012 deposition that a parasitic worm "ate a portion" of his brain and may have caused cognitive issues, according to a New York Times report. But these parasites don't "eat to your brain," Gounder said.
"The most likely one that he would have is a pork tapeworm-related cyst, and those generally will stay in place. They might grow, cause inflammation or swelling, and that's how you get symptoms — but they're not eating your brain," she said.
Brain worm symptoms
Symptoms can include nausea, vomiting, headaches and seizures, Gounder said, although many people who suffer from this type of infection may not see symptoms.
Treatment for tapeworm infection typically involves medications such as anti-parasitic drugs to kill the worms. In some cases, if the worm dies, the body's immune system may clear the dead worm from the brain tissue without requiring surgery, unless complications arise. Kennedy told the Times that no treatment was necessary for his parasitic condition.
Gounder said usually these parasites get "walled off by your immune system and they get calcified."
"So for most people, they probably don't even know they have this," she said. "It's only when they develop symptoms like seizures or headaches. Or maybe incidentally, it's picked up on a scan that you're having for some other reason."
-Allison Novelo contributed reporting.