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Does influenza vaccination help in preventing influenza A (H1N1-2009)?

April 26, 2017h1n1-2009 help Influenza vaccination

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Does influenza vaccination help in preventing influenza A (H1N1-2009)?

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It is not known whether the current seasonal flu vaccine protects against the new 2009 Influenza A (H1N1) strain. Some patients with H1N1 have been reported to have been previously vaccinated with the seasonal flu vaccine. This may mean that the seasonal vaccine is not protective, but because flu vaccine is never 100% protective anyway, we cannot be absolutely sure.