Boris Johnson, Simon Stevens and Professor Chris Whitty at Downing Street press conference

The transcript discusses the expansion of vaccine invitations in England and the challenges of vaccine supply. It addresses the impact of vaccines on reducing deaths and transmission, and the importance of data in understanding these effects. The discussion also touches on the World Health Organization's investigation into the origins of the pandemic in China and the need for transparency. The analysis of data from countries like Israel and the UK is highlighted to understand the vaccine's impact on severe disease and mortality rates.

What is the expected outcome of the studies being conducted on vaccine effectiveness?

What are the implications of the early data from the NHSC regarding vaccination impact?