UK hospitals use blockchain to track coronavirus vaccine temperature
1.8ml of Sodium chloride is added to a phial of the Pfizer/BioNTech COVID-19 vaccine concentrate ready for administration at Guy’s Hospital at the start of the largest ever immunization progran in the U.K.’s history on December 8, 2020 in London, United Kingdom.Victoria Jones – Pool | Getty ImagesLONDON — Two hospitals in the U.K. are