How do mRNA vaccines protect against new viral variants?

mRNA vaccines teach your body to fight new viral variants by giving it a blueprint for making a special tool that stops the virus from doing its job.

Imagine you're playing with building blocks, and each block is a piece of the virus. The old blueprint only shows you how to build one kind of block, but if the virus changes shape, like swapping out some blocks for new ones, your body might not recognize it anymore.

That’s where mRNA vaccines come in! They give your body a flexible blueprint that can be changed easily. It's like having a recipe book that you can update with just a few simple steps, even if the virus changes its shape slightly, your body knows how to make the right tool to stop it.

When you get an mRNA vaccine, your body reads the blueprint and makes special fighters called antibodies. These fighters are like little superheroes who know exactly what to look for on the virus, even if it changes a little bit.

So even when the virus updates its design, your body can still make the right fighters quickly, just like how you can still build cool towers even if some blocks get swapped out!