yes because the AZ one could be stored in a fridge, the Pfizer one had to be stored at temperatures below -70c if my memory serves me correctly
Yes, -80c to -60c and has a short shelf life once outside of these temps
COVID-19 Vaccine Pfizer BioNTech
Maximum shelf life is 9 months stored in a freezer at -80°C to -60°C
31 days at 2-8°C after thaw (assign immediately after removing from freezer)
In addition, once removed from the fridge may be stored between 2 to 25°C for 2 hours prior to dilution
In addition, once diluted may be stored between 2 to 25°C for a further 6 hours
Once thawed, the vaccine cannot be re-frozen
During storage, minimise exposure to room light, and avoid exposure to direct sunlight and ultraviolet light
This vaccine will be licensed shortly with slightly different storage requirements to those listed above. For more information about Pfizer vaccine stability outside of the storage conditions stated above please contact SPS questions.
https://www.sps.nhs.uk/articles/storage-requirements-for-each-covid-19-vaccine/My neighbour was supposed to service my car today, but he had his Pfizer booster yesterday, after being OK with his AZ jabs and it's knocked him sideways, says he feels as bad as he did when he had Covid, same woolen headed feelings