How do mRNA vaccines work differently from traditional vaccines?

Traditional vaccines are like practice drills for your immune system, they give it a little bit of something familiar to prepare it for battle.

mRNA vaccines are more like special messages that tell your body exactly what to build.

Imagine you're playing with building blocks. Traditional vaccines might hand you a few blocks and say, "Here, build something like this." Your immune system then tries to figure out what to do next.

But mRNA vaccines give you instructions, like a recipe card, telling your body, "Build this exact virus!" Then your body makes copies of the virus, so your immune system can practice fighting it without getting sick.

Traditional vaccines often use pieces of the actual virus or even a weakened version. mRNA vaccines don’t need to use the real virus at all, they just send a message telling your cells what to make.

So while traditional vaccines are like showing up with part of the enemy, mRNA vaccines are like sending a spy in with the exact blueprint of the enemy.

Both help you get ready for battle, but one gives a hint, and the other gives a full map. Traditional vaccines are like practice drills for your immune system, they give it a little bit of something familiar to prepare it for battle.

mRNA vaccines are more like special messages that tell your body exactly what to build.

Imagine you're playing with building blocks. Traditional vaccines might hand you a few blocks and say, "Here, build something like this." Your immune system then tries to figure out what to do next.

But mRNA vaccines give you instructions, like a recipe card, telling your body, "Build this exact virus!" Then your body makes copies of the virus, so your immune system can practice fighting it without getting sick.