What is immunity?

Immunity is your body’s special team that helps you stay healthy when germs come around.

Imagine your body is like a castle, and germs are like tiny invaders trying to get in. Your immune system is the guards of the castle, they stop the invaders or kick them out before they can cause trouble.

When a germ tries to enter your body, your immune system notices it right away. It sends out soldiers, called white blood cells, to fight the germ. These soldiers might catch the germ and make it go away, or they might tag it so other parts of the body know to help.

Sometimes, after the battle is over, your body remembers the germ. That way, if the same germ comes back later, your immune system can beat it faster, almost like having a superpower!

Without immunity, even small germs could make you sick every time they came around. But with a strong immune system, you can play, laugh, and grow up without getting stopped by every little bug that tries to sneak in.