"Captain Trips" is a fictional superflu virus from Stephen King's novel, The Stand. It is highly contagious and deadly, leading to the collapse of society as it spreads rapidly across the globe. The virus is characterized by its ability to kill 99.4% of those infected within a short period, causing widespread panic and chaos. In the story, the survivors of the outbreak are left to navigate a post-apocalyptic world. They are drawn to two opposing leaders, Randall Flagg and Mother Abagail, representing good and evil. The narrative explores themes of morality, survival, and the struggle for power in a devastated world.