4 doctors weighed in:

What is different about the flu vaccine from one year to the next?

4 doctors weighed in
Dr. JUDY WASHINGTON
Family Medicine
3 doctors agree

In brief: Depends

Each year the mixture of the flu strains used for the vaccine is different so you have to be vaccinated each year. This is more information from the cdc.
http://www.cdc.gov/flu/protect/vaccine/qa_intradermal-vaccine.htm.

In brief: Depends

Each year the mixture of the flu strains used for the vaccine is different so you have to be vaccinated each year. This is more information from the cdc.
http://www.cdc.gov/flu/protect/vaccine/qa_intradermal-vaccine.htm.
Dr. JUDY WASHINGTON
Dr. JUDY WASHINGTON
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