Science Common Sense

956 - How do vaccinations help protect the body from diseases?

Vaccinations help protect the body from diseases in a simple way:

1. A tiny part of the disease (like a weak germ or a fake copy of the germ) is put into your body, usually through a shot.
2. Your immune system (a group of tiny superheroes in your body) sees the weak germ and thinks, "Oh no, I need to attack this!"
3. Your immune system makes special soldiers called antibodies that can fight the weak germ.
4. These antibodies remember the weak germ and can recognize it if you ever meet it again.
5. Next time the germ comes, your immune system is ready and says, "I've met you before! I can defeat you!" and stops the germ from making you sick.

So, vaccinations help train your immune system to fight diseases before they even make you sick.