Chief Medical Officer Professor Chris Whitty delivering Downing Street press briefing

The video discusses the efficacy of vaccines, highlighting their strong protection against severe disease and mortality, but less so against mild disease and transmission. It emphasizes the importance of prioritizing vaccines for the most vulnerable, particularly by age, to maximize public health benefits. The video also considers geographical factors and the spread of new variants, advocating for targeted vaccination efforts in highly affected areas.

How does the text describe the protection provided by vaccines against severe disease?

What is the primary purpose of vaccines according to the text?

What factors are mentioned as influencing vaccine prioritization?

What is the consequence of transferring vaccines from older to younger groups as per the text?

What geographical considerations are mentioned regarding vaccination efforts?