1 UK Health Security Agency (UKHSA), London NW9 5EQ, UK. Electronic address: shamez.ladhani@ukhsa.gov.uk.
2 UK Health Security Agency (UKHSA), London NW9 5EQ, UK.
3 UK Health Security Agency (UKHSA), London NW9 5EQ, UK; Population Health Sciences Institute, Newcastle University, Newcastle upon Tyne, UK.
4 UK Health Security Agency (UKHSA), London NW9 5EQ, UK; NIHR Health Protection Research Unit in Healthcare Associated Infections and Antimicrobial Resistance, Imperial College London, London, UK.