1. Department of Infection and Population Health; University College London (UCL); London UK
2. UCL Hospitals; London UK
3. The Royal Free Sheila Sherlock Liver Centre; Royal Free Hospital; London UK
4. Research Department of Infection and Population Health; UCL; London UK
5. Anthony Nolan Centre; Anthony Nolan Trust; London UK
6. UCL/Medical Research Council Centre for Medical Molecular Virology; London UK
7. Department of Microbial and Cellular Sciences; University of Surrey; Surrey UK