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Why Vaccines Work

Season 3 Episode 17 | 6m 38s

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.

Aired: 02/15/15
Extras
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Get ready for the all-new season, coming January 17, 2027 at 9/8c.
Celebrate the legacy of Gene Wilder, the actor behind Willy Wonka and Young Frankenstein.
Stephanie J. Block and Sebastian Arcelus join The Tabernacle Choir for an epic holiday celebration.
Explore the site of the Battle of Camden and its importance to the American Revolution.
Formerly enslaved Americans formed Britain's Colonial Marines unit and marched on Washington, D.C.
DNA may help identify a soldier killed at the Battle of Camden.
A metal detector survey reveals long-lost soldiers at Camden Battlefield.
A musket ball reveals the deadly reality of Revolutionary War combat.
The chimpanzees in Fongoli have adapted humanlike behaviors to survive their environment.
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