Moritz U G Kraemer, Verity Hill, Christopher Ruis, Simon Dellicour, Sumali Bajaj, John T McCrone, Guy Baele, Kris V Parag, Anya Lindström Battle, Bernardo Gutierrez, Ben Jackson, Rachel Colquhoun, Áine O'Toole, Brennan Klein, Alessandro Vespignani, COVID-19 Genomics UK (CoG-UK) consortium; Erik Volz, Nuno R Faria, David Aanensen, Nicholas J Loman, Louis du Plessis, Simon Cauchemez, Andrew Rambaut, Samuel V Scarpino, Oliver G Pybus