About the Authors

Joseph Larmarange

joseph.larmarange@ceped.org

Affiliations Centre Population & Développement (UMR 196 Paris Descartes Ined IRD), Institut de Recherche pour le Développement, Paris, France, Africa Centre for Health and Population Studies, University of KwaZulu-Natal, Mtubatuba, South Africa

Joël Mossong

Affiliations Africa Centre for Health and Population Studies, University of KwaZulu-Natal, Mtubatuba, South Africa, Surveillance & Epidemiology of Infectious Diseases, Laboratoire National de Santé, Luxembourg, Luxembourg

Till Bärnighausen

Affiliations Africa Centre for Health and Population Studies, University of KwaZulu-Natal, Mtubatuba, South Africa, Department of Global Health and Population, Harvard School of Public Health, Harvard University, Boston, Massachusetts, United States of America

Marie Louise Newell

Affiliations Africa Centre for Health and Population Studies, University of KwaZulu-Natal, Mtubatuba, South Africa, Faculty of Medicine, Faculty of Social and Human Sciences, University of Southampton, Southampton, United Kingdom

Competing Interests

The authors confirm that co-authors Till Bärnighausen and Marie-Louise Newell are PLOS ONE Editorial Board members. However, this does not alter the authors’ adherence to PLOS ONE Editorial policies and criteria.

Author Contributions

Analyzed the data: JL. Wrote the paper: JL JM TB MLN.