Test mRNA-based COVID-19 immunization evokes defensive safe reactions in animals Kumar Jeetendra | July 25, 2020 Two injections of this vaccine were enough to induce robust immunity, completely preventing SARS-CoV-2 infection in mice. MRNA-based vaccines are all attractive options for protecting against SARS-CoV-2 because they may be quickly designed and manufactured at a huge scale within weeks. Moreover, preclinical studies have shown that mRNA-based vaccines cause potent and broadly protective immune …