Prof Chris Whitty, Chief Medical Officer for England answers questions from media at No10 Downing Street press briefing

Professor Whitty discusses the transition from Plan A to Plan B, focusing on the potential impact of new COVID-19 variants, particularly the Delta variant. The discussion includes the importance of face masks and vaccine passports, and the challenges posed by variants that might escape vaccination. The potential impact of the Delta variant during winter is also considered, highlighting the uncertainty in predicting future developments.

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