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Explainer: How Pfizer’s COVID-19 vaccine works
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Science, Biology, Chemistry
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11th Grade - University
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Hard
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The video explains how mRNA vaccines, like Pfizer's, use a genetic blueprint to instruct cells to produce a harmless spike protein, simulating a coronavirus infection and triggering an immune response. Lipid nanoparticles protect and deliver the mRNA to cells, where ribosomes produce the spike protein, prompting the body to build immunity.
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