About the Authors
Julius Centre for Health Sciences and Primary Care, University Medical Centre Utrecht, Utrecht, The Netherlands
Centre for Infectious Disease Control, RIVM, Bilthoven, The Netherlands
Hubert Department of Global Health, Rollins School of Public Health, Emory University, Atlanta, Georgia, United States of America
Health Protection Agency, London, United Kingdom
The authors have declared that no competing interests exist.
ICMJE criteria for authorship read and met: MK PFT RGP. Agree with the manuscript's results and conclusions: MK PFT RGP. Designed the experiments/the study: MK. Analyzed the data: MK PFT. Collected data/did experiments for the study: RGP. Wrote the first draft of the paper: MK. Contributed to the writing of the paper: MK PFT RGP.