Hugo C. van Woerden* , Brendan W. Mason*, Lika K. Nehaul†, Robert Smith*, Roland L. Salmon*, Brendan Healy‡, Manoj Valappil§, Diana Westmoreland§, Sarah de Martin†, Meirion R. Evans*, Graham Lloyd¶, Marysia Hamilton-Kirkwood‡, and Nina S. Williams*
Author affiliations: *National Public Health Service for Wales, Cardiff, United Kingdom; †Department of Public Health, Gwent, United Kingdom; ‡Department of Public Health, Cardiff, United Kingdom; §University Hospital of Wales, Cardiff, United Kingdom; and; ¶Special Pathogens Reference Unit, Wiltshire, United Kingdom
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