During a live Q&A, Professor Gabriel Leung discussed the 'herd immunity' proposal some governments were considering for the COVID-19 pandemic. He shared his understanding of the UK's policy and its presuppositions, including massive social distancing and non-pharmaceutical interventions, as well as protecting older adults who are more susceptible to the virus. Leung mentioned that the majority of countries have taken the East Asian approach, which he believes is less risky than the UK's approach.