From the Marvel press release:
World Fantasy Award-winning writer Stephen King, and Marvel Comics join forces once again to launch a new ground-breaking comic book series adapted from King's apocalyptical novel, The Stand! Acclaimed writer Roberto Aguirre-Sacasa (Secret Invasion: Fantastic Four, Angel Revelations) brings the first of several limited series to life this September in The Stand: Captain Trips!
The Stand, which is commonly deemed as King's most popular novel, is a story of Biblical proportions; after a government-made virus mows down majority of the human race, the few survivors must band together in order to survive.
Collected in The Stand: Captain Trips.