More vaccine info here: www.cdc.gov/vaccines/vac-gen/default.htm Special thanks to @The Slow Mo Guys ! www.youtube.com/user/theslowmoguys ↓↓↓ More info and sources below ↓↓↓ Thanks to Gates Notes for Supporting PBS. Since the start of the coronavirus COVID-19 pandemic, the term “herd immunity” has been all over the news. But what does it really mean? One thing most people don’t realize about vaccines is that they aren’t just to protect the person who gets the shot. They also protect the population as a whole… even people who didn’t get the shot. In this video, we use lots and lots of mousetraps and ping-pong balls to show you how that works. #coronavirus We’re on PATREON! Join the community ►► www.patreon.com/itsokaytobesmart SUBSCRIBE so you don’t miss a video! ►► bit.ly/iotbs_sub References: sites.google.com/view/whydowelie-references/home ----------- Special thanks to our Brain Trust Patrons: dani bowman David Johnston Ahmed Elkhanany Zenimal Salih Arslan Baerbel Winkler Denzel Holmes Robert Young Amy Sowada Benjamin Teinby Eric Meer Jay Stephens Peter Ehrnstrom Dustin Marcus Tuepker Karen Haskell AlecZero Diego Lombeida Join us on Patreon! patreon.com/itsokaytobesmart Twitter www.twitter.com/DrJoeHanson www.twitter.com/okaytobesmart Instagram www.instagram.com/DrJoeHanson www.instagram.com/okaytobesmart Merch store.dftba.com/collections/its-okay-to-be-smart Facebook www.facebook.com/itsokaytobesmartpbs/