How many doses will a patient need?
One dose of the vaccine is needed for those older than 9 years of age. For those 9 years and younger, 2 doses of the vaccine will be required and should be given at least 4 weeks or 28 days apart, according to current CDC recommendations. Although vaccine supply is limited, it is important for those 9 years and younger to receive 2 doses in order to be fully immunized against the 2009 H1N1 flu.
