About the Authors

Claire L. Risley

Affiliations The Partnership for Child Development, Imperial College, London, United Kingdom, Liverpool University Climate and Infectious Diseases of Animals (LUCINDA) Group, Institute of Infection and Global Health, University of Liverpool, Neston, Cheshire, United Kingdom

Lesley J. Drake

Affiliation The Partnership for Child Development, Imperial College, London, United Kingdom

Donald A. P. Bundy

dbundy@worldbank.org

Affiliation Human Development Network, The World Bank, Washington DC, United States of America

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: CR LD DB. Performed the experiments: CR. Analyzed the data: CR LD DB. Wrote the paper: CR LD DB.