Beating the flu has always been tough, but it has gotten even more difficult in recent years. Two of the four antiviral drugs used to treat a nasty case of the influenza A virus no longer work. Fortunately, scientists at the National High Magnetic Field Laboratory and Institute of Molecular Biophysics at Florida State University and researchers at Brigham Young University in Utah are close to understanding why these drugs have become less effective - and how new drugs might take their place. Their findings appear this week in the journal Science...

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