Scientists Learn Why The Flu May Turn Deadly: Influenza Virus 'Paralyzes' The Immune System

As the swine flu continues its global spread, researchers have discovered important clues about why influenza is more severe in some people than it is in others. In a new study, the scientists show that the influenza virus can actually paralyze the immune systems of otherwise healthy individuals, leading to severe secondary bacterial infections, such as pneumonia.

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