1. School of Medicine, University of St Andrews
2. Biosciences Institute, The Medical School, Catherine Cookson Building, Newcastle University, Newcastle upon Tyne, UK
3. Department of Surgery, Dundee Medical School Ninewells Hospital, Dundee, UK
4. MRC-University of Glasgow Centre for Virus Research, Glasgow, UK
5. School of Biology, University of St Andrews
6. Biosciences Institute, Centre for Bacterial Cell Biology, Baddiley-Clark Building, Newcastle University, Newcastle upon Tyne, UK