[Admittedly, Ash has a point, and it's not something he'd expect from a vampire as old as him. Illnesses tend to be something that humans have to deal with because vampires aren't so concerned about the sudden changing of the elements.]

So.

Someone brought it in from the outside. Likely a novice. [But there are so many novices around... Norton puts the book he was perusing down, and holds his hand out for the one in Ash's hands.] But we can't rule out other youngbloods, either. Not a lot of us are good with curses, either.

Had to have been recent as well, otherwise we would have had more cases before the month even began.