About Messenger RNA (mRNA) Vaccines

COVID-19 vaccine (Pfizer) is a messenger RNA (mRNA) vaccine.

mRNA vaccines teach cells how to make a harmless protein that is unique to the virus. 

This harmless protein then triggers the immune response to produce antibodies that protect against the SARS-COV-2 virus, which may cause COVID-19 infection if it enters the body. 

After our cells make copies of the protein, they destroy the mRNA from the vaccine.


Understanding and Explaining mRNA COVID-19 Vaccines



Page last reviewed: August 26, 2021