June 25 – The U.S. drug regulator on June 26 added a warning to the literature that accompanies Pfizer Inc/BioNTech and Moderna COVID vaccine shots to indicate the rare risk of heart inflammation after its use.
Coronavirus
Reuters: FDA adds warning about rare heart inflammation to Pfizer, Moderna COVID shots

A vial containing the COVID-19 vaccine by Pfizer-BioNTech and a syringe are seen on a table in the pharmacy of the vaccination center at the Robert Bosch hospital in Stuttgart, southern Germany, on Feb. 12, 2021.