Daily testing for contacts of individuals with SARS-CoV-2 infection and attendance and SARS-CoV-2 transmission in English secondary schools and colleges: an open-label, cluster-ran... av Young, BC, Eyre, DW, Peto, TEA, Kendrick, S, White, C, Smith, S, Beveridge, G, Nonnenmacher, T, Ichofu, F, Hillier, J, Oakley, S, Diamond, I, Rourke, E, Dawe, F, Day, I, Davies, L, Staite, P, Lacey, A, McCrae, J, Jones, F, Kelly, J, Bankiewicz, U, Tunkel, S, Ovens, R, Chapman, D, Bhalla, V, Marks, P, Hicks, N, Fowler, T, Hopkins, S, Yardley, L