Transmission of SARS-CoV-2 in the household setting: a prospective cohort study in children and adults in England by Miller, E, Waight, PA, Andrews, NJ, McOwat, K, Brown, KE, Katja, H, Ijaz, S, Letley, L, Haskins, D, Sinnathamby, M, Cuthbertson, H, Hallis, B, Parimalanathan, V, de Lusignan, S, Lopez-Bernal, J