authorization for emergency use for their COVID19 mRNA vaccine (BNT162b2) against COVID19,
Distribution of vaccine in the UK according to the population Identified in guidance from the joint committee of vaccination and immunization.
July 2020 PFIZER and BIONTECH agreement with the UK to supply 30 million doses,that was increased to 40 million doses.
What is mRNA vaccines?
COVID19 mRNA vaccines are given in the upper arm muscle, instructions (mRNA) are inside the muscle cells, the cells makes protein piece, After break down the instructions and gets rid of them, 
Next the cells display the protein piece on it's surface, our immune system recognize the protein building a immune response and making antibodies after that natural infection against COVID19,
The benefits of mRNA vaccines our body learned how to protect against future infection, these vaccines gain protection without having a risk of the serious consequences.
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