The D-Scott Virus is an overarching name given to any and all diseases--great and small. While it is traditionally associated with common airbourne illnesses, it can actually range anywhere from something as small as a sneeze to something as great as the AIDS. While the origins of the disease are unknown to the medical community, there is rampant speculation that it originates from a host in southwest Ohio.
Person A: "Ahhh-CHOOOO!"
Person B: "Watch out, dude, you could be spreading the D-Scott Virus!"