How MRNA Covid 19 vaccines work

How mRNA COVID-19 vaccines work to fight COVID-19

When mRNA (messenger RNA) vaccines are injected into a patient, tiny lipid vesicles transport mRNA molecules through the body fluids and merge with immune cells, called antigen-presenting cells (APCs). mRNA vaccines work to instruct APCs to manufacture proteins called antigens that evoke an immune response to the threat.

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