How do vaccinations work to protect against diseases?

Vaccinations teach your body how to fight off germs before they make you sick.

Imagine your body is like a castle, and germs are like invaders trying to get inside. If the invader gets in, they might cause a battle, that’s when you feel sick.

A vaccination is like giving your castle a training session with a picture of the invader. It shows your body what the invader looks like so it can prepare for the real fight. Your body then makes soldiers called antibodies, which remember how to beat that invader.

Next time the invader comes, your soldiers are already ready! They jump into action quickly, and you don’t get sick, or if you do, it’s much milder.

Think of it like learning how to catch a ball. At first, you might drop it a few times, but after some practice, you can catch it easily. Vaccinations are like that practice for your body so it can catch the germs and keep you healthy!