What disease could an American (in America) pick up that would almost certainly be deadly? Hep C? What else? It's got to be something you acquire from an outside source, rather than just happens in you. Like becoming a vampire, as opposed to becoming a Slayer. Yeah, that's the ticket.
But enough about that. Come on! It's Friday! I can mash potato! I can do the twist ::dances on your coffee table::