Pfizer working on freeze-dried version of COVID-19 vaccine that doesn’t need ultracold storage
March 30, 2021 at 23:39 PM EDT
Pfizer Inc. and partner BioNTech SE plan to begin soon testing a freeze-dried version of its COVID-19 vaccine, which if proven to work safely could ease storage and handling of the shots in rural U.S. areas and low-income countries.
