Also, not forgetting none of the makers had standardised the amount of LNP's containing Mrna per dose, I forget which was which but say Pfizer had 100 billion LNP's per dose, Moderna 50 billion and Astrazeneca 30 billion (that may not be the correct order) coupled with bad handling and low quality PEG might mean your area got very lucky!
Also, not forgetting none of the makers had standardised the amount of LNP's containing Mrna per dose, I forget which was which but say Pfizer had 100 billion LNP's per dose, Moderna 50 billion and Astrazeneca 30 billion (that may not be the correct order) coupled with bad handling and low quality PEG might mean your area got very lucky!