1. 1Centre for Genomic Pathogen Surveillance, Wellcome Genome Campus, Hinxton, UK
2. 2School of Veterinary Medicine, University of Surrey, Guildford, UK
3. 3Department of Mathematics and Statistics, Helsinki Institute of Information Technology, University of Helsinki, FI-00014 Helsinki, Finland
4. 4Pathogen Genomics, Wellcome Trust Sanger Institute, Hinxton, UK
5. 5Department of Infectious Disease Epidemiology, Imperial College London, London, UK
6. 6Department of Biostatistics, Institute of Basic Medical Sciences, University of Oslo, N-0317 Oslo, Norway
7. 7Big Data Institute, Li Ka Shing Centre for Health Informatics, University of Oxford, Oxford, UK