About the Authors

Katrina Brown

Katrina.Brown@imperial.ac.uk

Affiliation Department of Surgery and Cancer, Imperial College, London, United Kingdom

Graham Fraser

Affiliation Regional Epidemiology Unit, Health Protection Agency, London, United Kingdom

Mary Ramsay

Affiliation Centre for Infections, Health Protection Agency, London, United Kingdom

Ruth Shanley

Affiliation Department of Surgery and Cancer, Imperial College, London, United Kingdom

Noel Cowley

Affiliation Department of Surgery and Cancer, Imperial College, London, United Kingdom

Johan van Wijgerden

Affiliation NHS Ealing, London, United Kingdom

Penelope Toff

Affiliation NHS Brent, London, United Kingdom

Michelle Falconer

Affiliation NHS Halton & St Helens, Cheshire, United Kingdom

Michael Hudson

Affiliation Centre for Emergency Preparedness and Response, Health Protection Agency, Wiltshire, United Kingdom

John Green

Affiliation Central and North-West London NHS Foundation Trust, London, United Kingdom

J. Simon Kroll

Affiliation Department of Medicine, Imperial College, London, United Kingdom

Charles Vincent

Affiliation Department of Surgery and Cancer, Imperial College, London, United Kingdom

Nick Sevdalis

Affiliation Department of Surgery and Cancer, Imperial College, London, United Kingdom

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: KB GF MR NS. Performed the experiments: KB RS NC. Analyzed the data: KB GF MR NS. Wrote the paper: KB GF MR NS. Contributed revisions to the methodology and manuscript: MH JG JSK CV. Negotiated access to and retrieved patient data: JvW PT MF.