benefits (+), costs (-) and net benefits of March-June UK lockdown; converted to an index of £ billions.  10 QALY are assumed lost for each COVID-19 death. Each life saved is estimated to resulted in 10 more quality adjusted years of life. The NICE resource threshold of £30,000 is applied to each of these quality adjusted years.  The money value of GDP losses are taken as a proportion of 2019 GDP of £2.2 trillion