MODERNA is a Key Forerunner among all Vaccines:
At the end of March, 2020 this company started testing its mRNA-1273
vaccine against COVID-19 in Washington on 45 healthy volunteers with
ages between 18-55, this mRNA vaccine when injected into human body
cells, the lymphocytes (B and T cells) in lymph nodules can operate that
mRNA initiates the formulation of protein in just the right way for
other immune cells to mark and identify them for destruction (Grein et
al., 2020).