About the Authors

Boris V. Schmid

Boris.Schmid@gmail.com

Affiliation Unit Epidemiology & Surveillance, Centre for Infectious Disease Control, National Institute of Public Health and the Environment (RIVM), Bilthoven, The Netherlands

Mirjam Kretzschmar

Affiliations Unit Epidemiology & Surveillance, Centre for Infectious Disease Control, National Institute of Public Health and the Environment (RIVM), Bilthoven, The Netherlands, Julius Centre for Health Sciences & Primary Care, University Medical Centre Utrecht, Utrecht, The Netherlands

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

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