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Pandemic (H1N1) 2009 Influenza Vaccine
What is it? Overview Usage Side Effects and Warnings

What is Pandemic (H1N1) 2009 Influenza Vaccine?

As of the August 2010, pandemic H1N1 flu is no longer considered a pandemic. This fact sheet provides historical information about pandemic H1N1 flu and will no longer be updated. Please see the Centers for Disease Control and Prevention website at for the latest information about H1N1 flu.