The word vaccination is being thrown around a lot lately, and it may be leaving a lot of kids confused. Rick Crosslin, scientist in residence for MSD Wayne Township, joined us today with a little history on how we discovered vaccination and how they work. He explained it all in a kid-friendly way using a toy castle and dragon. Watch the video above to see the full segment.

Key Points:

• Your body has an amazing immune system
• Antibodies are made to protect you
• Vaccination comes from the Spanish word vaca – cow, from a cowpox outbreak in Boston

Watch the full version of his scientific explanation on Rick’s Youtube channel here.