About the Authors

Oliver W. Morgan

omorgan@bigfoot.com

Affiliation East of England Regional Epidemiology Unit, Health Protection Agency, Cambridge, United Kingdom

Boaventura Rodrigues

Affiliation Eastern Deanery Public Health Training Scheme, Cambridge, United Kingdom

Tony Elston

Affiliation Essex Rivers NHS Trust, Colchester, United Kingdom

Neville Q. Verlander

Affiliation Statistics, Modelling and Bioinformatics Department, Centre for Infections, Health Protection Agency, London, United Kingdom

Derek F. J. Brown

Affiliation Clinical Microbiology and Public Health Laboratory, Health Protection Agency, Addenbrookes Hospital, Cambridge, United Kingdom

Jonathan Brazier

Affiliation Anaerobe Reference Laboratory, National Public Health Service, University Hospital of Wales, Cardiff, United Kingdom

Mark Reacher

Affiliation East of England Regional Epidemiology Unit, Health Protection Agency, Cambridge, United Kingdom

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: MR BB TE NV. Performed the experiments: DB JB. Analyzed the data: OM NV. Contributed reagents/materials/analysis tools: TE DB JB. Wrote the paper: MR OM BB TE NV DB JB. Other: Enrolled patients: OM.