How the Flu Virus Can Change

How influenza viruses can change - CDC

Media Type: Html
  • SourceUrl:
  • Syndication ID: 4515
  • Language: English
  • Source: Centers for Disease Control and Prevention (CDC)
  • Date Syndication Captured: Monday, May 23, 2016 at 09:50 PM
  • Date Syndication Updated: Monday, May 23, 2016 at 09:50 PM


General: influenza pandemic hemagglutinin neuraminidase antigenic shift antigenic drift 2009 H1N1 how influenza viruses change influenza virus strains influenza A subtype influenza vaccine updates influenza A viruses

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