This clever video by TakePart, which appears to be connected to the upcoming Steven Soderbergh move Contagion, succinctly explains how influenza viruses spread, how a viral pandemic might start and simple precautions people can take to prevent the spread of the flu. It's two minutes long and really worth watching (I never realized Bieber Fever was a known condition).
Related: "Contagion" spreads across the nation on Friday. Will Hollywood get the science right?
Via Devour