8000 coronavirus cases a day in the UK

In this week's coronavirus update, the impact of blood groups on Covid risk, progress towards a vaccine, and the UK still has 8000 cases a day: what does this mean for herd immunity? Also, is Sweden's approach the wrong one, has hydroxychloroquine died a death, what actually is the Covid syndrome, what role may genes play, and how do we calculate Covid excess mortality? Dr Chris Smith talks to Radio New Zealand National's Kim Hill...