SARS-CoV-2 variant B.1.1.7 is not more virulent
When the B.1.1.7 variant of SARS-CoV-2 was first detected in the UK in December 2020 it was accompanied by unsubstantiated claims of increased transmissibility and virulence. The results of a hospital-based study in London reveals no association of the variant with severe disease in this cohort. In a note published by NERVTAG on 21 January …