1 Department of Microbiology, Hairmyres Hospital, NHS Lanarkshire, East Kilbride, UK.
2 Department of Microbiology, Hairmyres Hospital, NHS Lanarkshire, East Kilbride, UK; School of Applied Sciences, Edinburgh Napier University, Edinburgh, UK. Electronic address: stephanie.dancer@lanarkshire.scot.nhs.uk.
3 Institute for Public Health and Environmental Engineering, School of Civil Engineering, University of Leeds, Leeds, UK.