About the Authors

Daniel A. Henk

d.henk@imperial.ac.uk

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

Matthew C. Fisher

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

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

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