Boris Johnson answering questions during Downing Street coronavirus press briefing

The video discusses the purpose and potential disruptions caused by a new variant. It assesses the current situation, noting that hospitalizations remain low. The public is urged to be aware of the variant's increased transmissibility, especially in affected areas. Depending on the transmissibility level, additional measures may be needed. The response will be swift and data-driven to protect the public.

What measures does the speaker indicate may be necessary if the variant is at the higher end of transmissibility?

What is the speaker's commitment regarding the response to clear data about the variant?