Medicines and Healthcare products Regulatory Agency
Two NHS staff suffered an allergic reaction after receiving the Pfizer/BioNTech jab on Tuesday.
This being 2020, it didn't take long for good news about the Pfizer/BioNTech jab to turn into a tiresome row about Brexit.
Matt Hancock said "help is on its way" after the UK became the first Western country to have a clinically approved vaccine.
The UK has ordered 40 million doses of the Pfizer jab and expects 10 million doses by the end of the year.
There are still a few hurdles to overcome before the Pfizer vaccine is available – and perhaps even more if you aren't on the priority list.