They’d given the plague a name, a callous nickname. The SDC they called it: Supernatural Death Cough.

But at some point during the day they’d begun to notice that some kids were getting better, too. The flu was awful. But it wasn’t a death sentence to everyone who caught it.

They’d been unable to keep complete records, but according to Dahra’s hasty notes and frazzled memory about one in ten progressed to full-blown SDC.

Plague, Chapter 21