Anti-spike antibody response to natural SARS-CoV-2 infection in the general population by Wei, J, Matthews, PC, Stoesser, N, Maddox, T, Lorenzi, L, Studley, R, Bell, JI, Newton, JN, Farrar, J, Diamond, I, Rourke, E, Howarth, A, Marsden, BD, Hoosdally, S, Jones, EY, Stuart, DI, Crook, DW, Peto, TEA, Pouwels, KB, Walker, AS, Eyre, DW