Rackfever

"Rackfever is epidemic on the planet. Anyone who visits runs a high risk of infection. There is no known cure for the disease. Any volunteers?"
"I'll go, Admiral."

―An Admiral and Luke Skywalker

Rackfever was a disease with a high infection rate and no known cure. Luke Skywalker once volunteered to perform a mission on a planet with a severe rackfever epidemic, knowing that he would be able to use the Force power Control Disease to prevent himself from succumbing to the illness.

Sources

• Star Wars: The Roleplaying Game (First mentioned)