Immunity and Vaccines Explained
Featured
Sorry, only registred users can create playlists.
253
Views
Description
Vaccines work with our immune system to keep us from getting sick.
For a full list of credits, visit our website: http://to.pbs.org/1y6EMUK
Post your comment
Comments
Be the first to comment
![KIDZ BOP Kids – CAN'T STOP THE FEELING! (Official Music Video) [KIDZ BOP 33]](https://i.ytimg.com/vi/HzcTN4YyHZs/mqdefault.jpg)
![KIDZ BOP Kids - Cake By The Ocean (Official Music Video) [KIDZ BOP 32]](https://i.ytimg.com/vi/efRmmFQ8QVA/hqdefault.jpg)
![KIDZ BOP Kids - My House (Official Music Video) [KIDZ BOP 32]](https://i.ytimg.com/vi/F6N24q_eAvA/hqdefault.jpg)
![KIDZ BOP Kids - Bad Blood (Official Music Video) [KIDZ BOP 30]](https://i.ytimg.com/vi/-jbjz5RJUAs/hqdefault.jpg)
![KIDZ BOP Kids - Sorry (Official Music Video) [KIDZ BOP 31]](https://i.ytimg.com/vi/bkuO38jNaAA/hqdefault.jpg)
![KIDZ BOP Kids – Sorry Not Sorry (Official Music Video) [KIDZ BOP 36]](https://i.ytimg.com/vi/tYiO6yBUOyw/mqdefault.jpg)
![KIDZ BOP Kids – Fight Song (Official Lyric Video) [KIDZ BOP 30]](https://i.ytimg.com/vi/348sppXOqSY/hqdefault.jpg)
![Minecraft Story Mode | SOMEONE ELSE DIES?! | Episode 6 [#2]](https://i.ytimg.com/vi/qAkVDA5HdHI/mqdefault.jpg)
![KIDZ BOP Kids – Roar (Official Lyric Video) [KIDZ BOP Greatest Hits]](https://i.ytimg.com/vi/82qwfpkEO-8/hqdefault.jpg)
![Minecraft Story Mode | I'M IN THE GAME?! | Episode 6 [#1]](https://i.ytimg.com/vi/IilE-Tsn6hI/mqdefault.jpg)
