We are at a stage in dealing with the C-19 pandemic where we look even more to numbers to guide our response than at any previous point. That doesn't mean we have lost sight of the human impact of a disease for which there is nothing in the pharmacological toolbox with which to fight it. There is a range of interventions that are being used to manage the effects of the virus in patients. The use of ventilators is one. So our main objective, as it has been from the start, is to stop the spread from person to person. One of the very interesting things to emerge from Professor Harry Burn's evidence to the COVID-19 Committee yesterday was in relation to face masks. Now he is someone to whose advice I have always listened carefully. We were fortunate to have him and Professor Linda Bauld, a public health specialist, before our Committee. Harry told us that masks worn by those who are infected reduces the number to whom they pass on the virus, to one-tenth of what it would oth...
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