According to Deadline, The CW has picked up the drama spec Sick which presents a world in which adults become "allergic" to teens because of a mysterious virus. The potential series would focus on a group of quarantined teens who go on the run. Deadline says it's a cross between Contagion and The Hunger Games.
Sean Hood penned the script; he's no stranger to horror having penned Halloween: Resurrection and episodes of Masters of Horror and Fear Itself.
With Sick under its belt, I wonder if The CW is still pursuing Battle Royale now...