More than 1,100 doses of Pfizer's COVID-19 vaccine are DESTROYED in Florida after worker accidentally turns off power supply to refrigerator in a mobile vehicle where they were being stored Palm Beach health care worker accidentally shut off power supply to a refrigerator where the Pfizer vaccines were being stored The Pfizer vaccine must be kept refrigerated in order to preserve some of its components or else it is rendered useless The blunder meant that 232 vials of the vaccine - consisting of 1,160 doses - had to be destroyed Palm Beach County official are now storing supplies in centralized refrigerators with a backup generator to prevent such an incident from reoccurring