Why Doesn’t the Flu Vaccine Always Work?
The flu vaccine changes from year to year and its efficacy varies. Here’s why.
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PRODUCTION CREDITS
Writing & Research
Theresa Machemer
Digital Producer: Ari Daniel
Editorial Review: Julia Cort
Special Thanks: Centers for Disease Control and Prevention
© WGBH Educational Foundation 2018
MEDIA CREDITS
Visuals & Videography:
Seth Zost
David W. Held
Centers for Disease Control and Prevention
GSK
Seqirus
Flickr/ CC BY-NC 2.0 | Carlos Villarreal
pexels.com
pixabay.com
shutterstock.com
wikipedia | Thorkild Tylleskar, Timisstuck, WHO
Music: APM
Sound Effects: freesound.org