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Pandemic Flu

Duration of protection



How long does the protection provided by the H1N1 vaccine last?


Although the exact answer is unknown, the protection is expected to last until the next flu season. It is likely that H1N1 antigen will be included in the regular seasonal flu vaccine that is distributed in the fall of 2010.

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Response by:

John  Andrews, MD, MPH John Andrews, MD, MPH
Assistant Senior Vice President Medical Center
Director University Health Services
University of Cincinnati