Alok Sharma giving Downing Street press briefing on coronavirus

The video emphasizes the importance of not easing restrictions too soon to prevent a second peak of COVID-19 infections that could overwhelm the NHS. It thanks the public for their sacrifices in following government advice to stay at home, which helps protect the NHS and save lives. The speaker urges continued vigilance, as the risk of the virus persists, and stresses the need for collective effort to defeat the virus.

What does the phrase 'invisible enemy' refer to in the context of the current situation?

What does staying vigilant mean in the context of the ongoing pandemic?