How can an alien invasion count as an epidemic? When neither a spaceship nor any actual aliens are ever seen. When the problem seems to arise one day from within a community and spreads outward, like the simplest of viruses, taking over, one by one, every entity around it. This is the story of Invasion of the Body Snatchers, in which the residents of a small California town slowly find themselves replaced by extraterrestrials. The only way to fight back? Don’t fall asleep. An impossible request. So they begin to change. First a few, then more, than almost the entire town. An epidemic of boring, white-bread, conformist pod people.
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