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A hazardous goods worker shows how dry ice is used on specific vaccines and medicines to keep them cool during a demonstration of logistics and handling of vaccines and medicines at the DHL cargo warehouse in Steenokkerzeel, Belgium, Tuesday, December 1, 2020. European Commission President Ursula von der Leyen said Tuesday that member states have started working on their vaccination plans and on the logistics for the delivery of tens of millions of doses across the 27-nation bloc. Safely delivering COVID-19 vaccines, once approval has been made, will be the mission of the century for the global air cargo industry. (Photo by Virginia Mayo/AP Photo)
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