Germany-based BioNTech SE and its partner Pfizer Inc have reported positive early data from an ongoing Phase 1/2 study of a messenger RNA (mRNA) vaccine against the coronavirus SARS-CoV-2 showing that the vaccine was well tolerated and generated a dose dependent immunogenicity. Immunogenicity was determined by measuring SARS-CoV-2 antibody titers compared with levels observed in convalescent plasma from patients who have recovered from COVID-19.
