mRNA don't last long at all. The challenge was making them last long enough to even work. https://www.mskcc.org/coronavirus/what-s-different-about-messenger-rn

mRNA don't last long at all. The challenge was making them last long enough to even work. https://www.mskcc.org/coronavirus/what-s-different-about-messenger-rna-vaccines-covid-19 https://www.mskcc.org/coronavirus/what-s-different-about-mes...