04:59
Be Smart
Do Other Animals Mourn Their Dead?
Do Other Animals Mourn Their Dead?
Why Vaccines Work
Join Joe Hanson as he explores curiosity and illuminates the science behind… well, everything.
Why Vaccines Work
Season 3 Episode 17 | 6m 38s | CC
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.
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