> Moderna’s vaccine against COVID-19 was developed in record time because it’s based on a relatively new genetic method that does not require growing huge amounts of virus. Instead, the vaccine is packed with mRNA, the genetic material that comes from DNA and makes proteins.
Moderna loads its vaccine with mRNA that codes for the right coronavirus proteins which then get injected into the body. Immune cells in the lymph nodes can process that mRNA and start making the protein in just the right way for other immune cells to recognize and mark them for destruction.