How does mRNA vaccine technology work to fight viruses?

A mRNA vaccine helps your body learn how to fight a virus by giving it a special message.

Imagine you're playing hide and seek, and someone tells you exactly where to look, that’s like what an mRNA vaccine does. It gives your body instructions on how to find and beat the virus.

Your body has tiny helpers called cells. When you get a vaccine, it sends a message (called mRNA) into these cells. This message is like a blueprint that tells the cells: “Make a copy of this virus so we can practice fighting it!”

The cells read the message and start making a piece of the virus, not the whole thing, just a part of it. Then your body notices this piece and starts training its fighters, called antibodies, to recognize and attack the real virus if it comes.

Once your body has trained its fighters, they're ready for when the real virus shows up. They’ll know exactly what to do, like how you know where to hide in your favorite game!

Your body keeps this training going so that next time the virus tries to come back, it’s already prepared, and you stay healthy!