I found this to be a great write-up from @donatopmancini in the @FT regarding the "cold-chain" logisitics required to deliver vaccines across the world. From manufacturing to storage to transportation to further storage and eventually to administering the vaccine to a patient, it must be kept cold to remain stable. 

This is not a new need in the world of pharmaceuticals and vaccines, however the challenge of shipping billions of doses of the eventual COVID vaccine will test the limits and strength of the global cold-chain.