About the Authors
- Thomas R. Hird
- Nicholas C. Grassly
* E-mail: email@example.com
Affiliation Department of Infectious Disease Epidemiology, Imperial College London, Norfolk Place, London, United Kingdom
NCG is a member of the WHO working group on IPV that reports to the Strategic Advisory Group of Experts (SAGE) on Immunization. Otherwise, the authors have declared that no competing interests exist.