Want better video quality? Sign in to access HD streaming!

×

Want to watch better-quality PBS Video? Sign in to access HD streaming!

When you sign in, you'll become a PBS Insider and we'll share your contact information with your local PBS station. You may receive updates to help you stay connected with what's happening online and in your community. Privacy Policy

IT’S OKAY TO BE SMART

S1 Ep24: Why Vaccines Work

  • Aired: 07/21/2015
  • 06:09
  • Expires: 07/22/2020
  • Rating: NR
As more and more parents are choosing not to vaccinate their children or are vaccinating them later, diseases like measles are making a comeback. Are vaccines safe? How do vaccines work? Why do some people claim there is a link between vaccines and autism? This week we look at why are people afraid of something that has saved so many lives, and look at the history and science of vaccines.
Embed Options
Close ×
S1 Ep24: Why Vaccines Work
S1 Ep24: Why Vaccines Work
A dose of reality about vaccines
Width:
Height:
Please copy this text to your clipboard.
Problems Playing Video ?
PBS Anywhere - funder area
Related Links:

PBS KIDS

Watch videos from your favorite PBS KIDS shows with the PBS KIDS Video app for your tablet or phone.

Downton Abbey Collection

Bring home the complete collection: DVDs, Blu-rays, books, gifts and more. Visit ShopPBS.

Donate

WMHT helps all of us explore new worlds and ideas. Give Now

AugustLightbox