UK: Boris Johnson hosting the Uk Governments daily coronavirus press conference, Part Eight.

The transcript discusses the UK's role in developing a COVID-19 treatment, highlighting the contributions of British scientists and the successful clinical trial of dexamethasone. The speaker acknowledges the efforts of trial participants and ensures the drug's availability across the NHS, even in the event of a second wave.

How has dexamethasone been proven to affect patients according to the text?

What measures have been taken to ensure the availability of dexamethasone?