U.K. Prime Minister Johnson Being Treated in Intensive Care for Virus

Boris Johnson, the UK Prime Minister, has been moved to the ICU as his condition worsens. Dominic Raab is deputizing for him. The UK financial markets have reacted negatively to this news. Initially, the UK was slow in responding to the coronavirus, focusing on herd immunity. Boris Johnson is the first G20 leader to contract the virus, raising concerns about leadership continuity.

What was the initial approach of Boris Johnson's administration towards the coronavirus epidemic?

What concerns were raised regarding the continuity of the UK government during Boris Johnson's hospitalization?