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    GlossarymRNA vaccine

    uses genetic instructions to trigger an immune response

    An mRNA vaccine, or messenger RNA vaccine, is a type of vaccine that uses a small piece of the genetic material from a virus to instruct cells in the body to produce a protein that triggers an immune response. This immune response helps the body recognize and fight the actual virus if it is encountered in the future. Unlike traditional vaccines, which often use weakened or inactivated forms of a virus, mRNA vaccines do not contain live virus particles, making them quicker and easier to produce.

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