About the Authors

Kevin A. Brown

kevin.brown@mail.utoronto.ca

Affiliation Division of Epidemiology, Dalla Lana School of Public Health, University of Toronto, Toronto, Ontario, Canada

David N. Fisman

Affiliation Division of Epidemiology, Dalla Lana School of Public Health, University of Toronto, Toronto, Ontario, Canada

Rahim Moineddin

Affiliation Department of Family and Community Medicine, University of Toronto, Toronto, Ontario, Canada

Nick Daneman

Affiliation Division of Infectious Diseases, Department of Medicine, Sunnybrook Health Sciences Centre, University of Toronto, Toronto, Ontario, Canada

Competing Interests

The authors have read the journal's policy and have the following conflicts: Dr. Fisman has received research funding from Novartis, Sanofi-Pasteur, and GlaxoSmithKline vaccine divisions. This does not alter the authors' adherence to all the PLOS ONE policies on sharing data and materials.

Author Contributions

Conceived and designed the experiments: KAB DNF RM ND. Performed the experiments: KAB ND. Analyzed the data: KAB DNF RM ND. Contributed reagents/materials/analysis tools: KAB RM. Wrote the paper: KAB DF ND. Drafted the manuscript: KAB ND. Critically revised the manuscript: DNF RM ND.