Dominic Raab speaking at Downing Street's daily press briefing on Covid-

The press conference from Downing St features updates on the coronavirus situation by government officials. The government outlines its action plan to slow the virus spread, protect the NHS, and save lives. Measures include expanding NHS capacity and urging the public to follow social distancing. Current data shows significant testing and positive cases, with a focus on the importance of adhering to guidelines to prevent further loss of life.

Who are the key figures mentioned in the press conference and what are their roles?

What is the significance of following social distancing guidance as mentioned in the press conference?