Affiliations

• ¹ Public Health England North West, 3 Piccadilly Place, London Rd, Manchester, M1 3BN, United Kingdom; Manchester Academic Health Science Centre, University of Manchester, Institute of Population Health, Faculty of Medical and Human Sciences, Stopford Building, Oxford Road, Manchester, M13 9PT, United Kingdom. Electronic address: william.welfare@phe.gov.uk.
• ² Field Epidemiology Service North West, Public Health England, 5th Floor Rail House, Lord Nelson Street, Liverpool, L1 1JF, United Kingdom. Electronic address: valerie.decraene@phe.gov.uk.
• ³ Field Epidemiology Service North West, Public Health England, 5th Floor Rail House, Lord Nelson Street, Liverpool, L1 1JF, United Kingdom. Electronic address: paul.cleary@phe.gov.uk.
• ⁴ Central Manchester University Hospitals NHS Foundation Trust, Central Manchester University Hospitals NHS Foundation Trust Manchester Medical Microbiology Partnership, Clinical Sciences Building, Manchester Royal Infirmary, Oxford Road, Manchester, M13 9WL, United Kingdom; Public Health Laboratory - Manchester, Public Health England, Manchester Medical Microbiology Partnership, Clinical Sciences Building, Manchester Royal Infirmary, Oxford Road, Manchester, M13 9WL, United Kingdom. Electronic address: andrew.dodgson@cmft.nhs.uk.
• ⁵ Field Epidemiology Service East Midlands, Public Health England, Institute of Public Health, City Hospital, Nottingham, NG5 1PB, United Kingdom; University of Nottingham, Institute of Public Health, City Hospital, Nottingham, NG5 1PB, United Kingdom. Electronic address: richard.puleston@phe.gov.uk.