"It ain't a toe fungus..." Joel replied, doing his best not to be annoyed at the seeming flippancy of the list Henry provided. "But it is a fungus. It's called the cordyceps. It infects the brain, like a parasite, taking over all motor functions. They get violent and hungry and that's about as much as I know about how it works."

Which wasn't ENTIRELY true. He knew a little more than that, but it was technical stuff he'd picked up and probably not that interesting.

"...and no. There ain't a cure."

And that was on him.