An international traveler reaches into the snack bowl at an airport bar before passing her credit card to a waiter. A business meeting begins with a round of handshakes. A man coughs on a crowded bus… One contact. One instant. And a lethal virus is transmitted. A global pandemic explodes.
At the U.S. Centers for Disease Control and Prevention, researchers mobilize to break the code of a unique biological pathogen as it continues to mutate.
