The COVID‐19 vaccine developed by Pfizer and BioNTech was approved by the Medicines and Healthcare Products Regulatory Agency (MHRA) in the United Kingdom (UK) on December 2^nd 2020. MHRA is therefore the first regulator agency in the world to approve a vaccine to prevent coronavirus disease (COVID‐19), which is caused by severe acute respiratory syndrome coronavirus 2 (SARS‐CoV‐2), a virus that is responsible for a global pandemic.