Contracted from infected under cooked pork or infected human feces, the Pork Tapeworm can create cysts in human tissue, sometimes growing in the brain making it impossible to kill.
This parasite has adapted to afix itself to humans in water, where it burns a hole in your skin and burrows deep inside you. Once inside it migrates towards the brain and acts very much like a brain tumor.
Also known as Racoon Round Worm, Baylisascarsis is a deadly parasite that attacks shortly after being ingested. If it makes its way to your brain it can cause blindness, paralysis and even death.
Carried by mosquitos on to the skin of a host, Botfly larvae burrow deep inside your skin and feed on tissue and blood. They can get so large that you can literally feel them moving inside you!