7 doctors weighed in:

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

7 doctors weighed in
Dr. JUDY WASHINGTON
Family Medicine
4 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
Thank
Dr. James Ferguson
Pediatrics
1 doctor agrees

In brief: Time sensitive

The flu mutates/changes often and international travel brings a constantly changing pattern of different strains.
To create a fall flu vaccine the manufactures must choose the strains causing the most flu, rush a vaccine into production, test and retest it and distribute it to the public. New strains make last years vaccine less effective, next year new strains make this years vaccine less effecti

In brief: Time sensitive

The flu mutates/changes often and international travel brings a constantly changing pattern of different strains.
To create a fall flu vaccine the manufactures must choose the strains causing the most flu, rush a vaccine into production, test and retest it and distribute it to the public. New strains make last years vaccine less effective, next year new strains make this years vaccine less effecti
Dr. James Ferguson
Dr. James Ferguson
Thank
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