About the Authors

Manoj Gambhir

m.gambhir@imperial.ac.uk

Affiliation Department of Infectious Disease Epidemiology, School of Medicine, Imperial College London, London, United Kingdom

Edwin Michael

Affiliation Department of Infectious Disease Epidemiology, School of Medicine, Imperial College London, London, United Kingdom

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: MG EM. Performed the experiments: MG EM. Analyzed the data: MG EM. Contributed reagents/materials/analysis tools: MG EM. Wrote the paper: MG EM.