About the Authors

Marnie L. Brennan

marnie.brennan@nottingham.ac.uk

Current address: School of Veterinary Medicine and Science, The University of Nottingham, Sutton Bonington Campus, Loughborough, United Kingdom

Affiliation Department of Epidemiology and Population Health, Institute of Infection and Global Health, Faculty of Health and Life Sciences, Leahurst Campus, University of Liverpool, Liverpool, United Kingdom

Robert M. Christley

Affiliation Department of Epidemiology and Population Health, Institute of Infection and Global Health, Faculty of Health and Life Sciences, Leahurst Campus, University of Liverpool, Liverpool, United Kingdom

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: MB RC. Performed the experiments: MB. Analyzed the data: MB RC. Wrote the paper: MB RC.