Safety outcomes following COVID-19 vaccination and infection in 5.1 million children in England by Copland, E, Patone, M, Saatci, D, Handunnetthi, L, Hirst, J, Hunt, DPJ, Mills, NL, Moss, P, Sheikh, A, Coupland, CAC, Harnden, A, Robertson, C, Hippisley-Cox, J