What kind of logistics operation awaits us for the vaccination of 7.8 billion people?

What kind of logistics operation awaits us to vaccinate 7.8 billion people?
When it was announced that the mRNA vaccine developed by BioNTech company should be transported at -70 degrees Celsius, it was a matter of curiosity how the vaccine would be transported and stored. TTT Global Chairman of the Board Dr. Akın Arslan researched the subject for the World. 16 thousand jumbo jets are needed to deliver this vaccine to 7.8 billion people in the world as 2 doses.