Professor Chris Whitty speaking during 'Roadmap out of Lockdown' press conference

The video discusses the effectiveness of COVID-19 vaccines in reducing death rates and hospitalizations. It highlights the progress of vaccination among different age groups in the UK, emphasizing the importance of not leaving behind those under 50. The video also presents studies showing significant reductions in infection rates after vaccination, with increased effectiveness after a second dose.

What were the findings of the Siren study regarding vaccine effectiveness?

How does the effectiveness of the vaccine change after the second dose?