The mRNA vaccine was jointly developed by Moderna and the National Institute of Allergy and Infectious Diseases (NIAID).
MRNA vaccine is a kind of nucleic acid vaccine, which can directly inject mRNA or DNA encoding COVID-19 S protein into the body, synthesize S protein in the body, and stimulate the body to produce antibodies by simulating virus infection. It is an immune product made to prevent and control the occurrence and epidemic of novel coronavirus; MRNA aims to introduce the genetic information of antigen into human body (rather than antigen itself), thus stimulating the subsequent immune response in vivo, which has a revolutionary breakthrough significance from the mechanism of action.