About the Authors

Michiel van Boven

To whom correspondence should be addressed. E-mail: michiel.vanboven@wur.nl

Affiliations Faculty of Veterinary Medicine, Utrecht University, Utrecht, The Netherlands , Animal Sciences Group, Wageningen University and Research Centre, Lelystad, The Netherlands

Marion Koopmans

Affiliation Centre for Infectious Disease Control, National Institute for Public Health and the Environment, Bilthoven, The Netherlands

Mirna Du Ry van Beest Holle

Affiliation Centre for Infectious Disease Control, National Institute for Public Health and the Environment, Bilthoven, The Netherlands

Adam Meijer

Affiliation Centre for Infectious Disease Control, National Institute for Public Health and the Environment, Bilthoven, The Netherlands

Don Klinkenberg

Affiliation Faculty of Veterinary Medicine, Utrecht University, Utrecht, The Netherlands

Christl A Donnelly

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

Hans (J. A. P.) Heesterbeek

Affiliation Faculty of Veterinary Medicine, Utrecht University, Utrecht, The Netherlands

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

MdRvBH, AM, and MK designed and carried out the epidemiological investigations. MvB performed the analyses. DK, CAD, and JAPH checked and commented on the methodology. MvB wrote the paper. All authors edited and commented on the text.