A variant of SARS-CoV-2 has been spreading within England, and it has been suggested that this virus is more transmissible. In this video Vincent explains the properties of the SARS-CoV-2 UK variant and why claims that it is more transmissible are not supported by experimental data.
This video was recorded on Monday, 21 December 2020. Since then additional data on the UK variant have been released but they do not change my view: there are no biological data in humans showing that the virus has increased transmissibility. The variant is certainly spreading in the population, but that could be due to other situations that have not been ruled out.