The US Food and Drug Administration (FDA) has given an emergency use authorization (EUA) to Moderna, Inc.’s vaccine against the SARS-CoV-2 virus, mRNA-1273, just a week after granting one to Pfizer Inc. and BioNTech SE’s BNT162b2. Yet, despite the two products’ similarity, Moderna’s has not yet shown cases suggesting anaphylaxis in people receiving it.
The agency granted the much-anticipated EUA on 18 December, following a 17 December vote by the FDA’s Vaccines and Related...







