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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