Achieving herd immunity would require well over 47 million people to be infected in the UK. Current estimates are that COVID-19 has a 2.3% case-fatality rate and a 19% rate of severe disease. This means that achieving herd immunity to COVID-19 in the UK could result in the deaths of more a million people with a further eight million severe infections requiring critical care.
Although this was how the world managed to overcome others have managed to curb the rate of infection without resorting to either draconian measures or extreme deaths., He questions if this is the best strategy. He argues that