US doctor develops severe allergic reaction to Moderna COVID-19 vaccine, reports NYT Reuters Dec 26, 2020 It is the first severe reaction publicly linked to Moderna’s vaccine, which is in its first week of rollout in the US
MHRA issues anaphylaxis warning for Pfizer BioNTech vaccine Reuters Dec 10, 2020 Pfizer and BioNTech said they were supporting the MHRA’s investigation