The COVID pandemic has already demonstrated that population research resources can be aligned around a common research goal and that a modest infrastructure investment can yield an efficient response which levers value from previous funder investment. This proposal is focused on the bringing together of UK population-based resources through the explicit and real generation, administration and analysis of a multi-study COVID-19 questionnaire. It is purposefully limited to this objective, but will create a model of agile, coordinated responses to emergent questions of high public interest that no one cohort can adequately address. This is beyond the scope of the immediate priority and capacity of the Secretariat, but the box below outlines one obvious extension to the concept.