Effect of Delta variant on viral burden and vaccine effectiveness against new SARS-CoV-2 infections in the UK

Nature Medicine
Volume 27 Issue 12, December 2021
https://www.nature.com/nm/volumes/27/issues/12

 

Article | 14 October 2021 | Open Access
Effect of Delta variant on viral burden and vaccine effectiveness against new SARS-CoV-2 infections in the UK
A large, community-based study in the United Kingdom indicates that the effectiveness of BNT162b2 and ChAdOx1 vaccines against SARS-CoV-2 infections with symptoms or high viral burden is reduced with the Delta variant compared to the Alpha variant.
Koen B. Pouwels, Emma Pritchard, A. Sarah Walker