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Understanding COVID-19: How mRNA Vaccines Work

Messenger RNAs, mRNAS are the message that the cell uses to create a whole variety of proteins, which are building blocks and tools for cell function and survival. So what mRNA vaccines do, they send that message with a blueprint, and it's a message that has an auto destruct feature, like Mission Impossible, like a SnapChat message. The mRNA vaccine takes the blueprint of the viral spike protein, and enables the immune system to generate very protective high level neutralizing antibodies. The body recognizes that spike protein and remembers that it has seen it before, so that next time when there is an infection, it attacks the full virus.

Read more on YSPH's website.