CV 19 Vaccination Certification?

Nice to hear that the Oxford Astra Z vaccine is looking good and relatively useable as it can be stored at normal fridge temperatures.

The Pfizer/BioNTech vaccine does not have to be stored at such low temperatures until it is administered. During the last 5 days prior to use it is sufficient to store it in a fridge. The logistics of handling it are therefore not quite as daunting as one may fear.

It is also cheaper than others and being manufactured and sold for no profit

That seems illogical to me.  What is the storage to administration sequence?

Taken from a learned paper / report:

...these vaccines, which use strands of genetic material known as mRNA, also have some stringent temperature requirements. Moderna’s vaccine requires long-term storage at minus 20 degrees Celsius (minus 4 degrees Fahrenheit) and is stable for 30 days between 2 degrees to 8 degrees Celsius (36 degrees to 46 degrees Fahrenheit). Pfizer and BioNTech’s vaccine, however, requires some of the coldest temperatures of any vaccine under consideration: minus 70 degrees Celsius (minus 94 degrees Fahrenheit) or lower.

It is true that the vaccine must be stored at -70°C in the chain from the manufacturer to the clinic where it will eventually be administered, but there it will presumably be administered relatively quickly. For short periods of time, the clinics themselves will only have to store it at normal fridge temperatures.

That is one reason why the vaccine will be administered only in specific clinics, not by GP's in general.

Because it only has a short shelf life once it leaves that minus 70°C, a bit like defrosting a piece of chicken from the freezer. Fine for 24-36 hours but it goes off after that.

I believe Pfizer have stated that 5 days is the maximum period the RNA can be relied on to stay active.

Edit - Crossed with Lutz's post.