About the Authors

E. A. S. Nelson

tony-nelson@cuhk.edu.hk

Affiliation Department of Paediatrics, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong SAR, People's Republic of China

David E. Bloom

Affiliation Department of Global Health and Population, Harvard School of Public Health, Boston, Massachusetts, United States of America

Richard T. Mahoney

Affiliation Global Health Consultant, Sedona, Arizona, United States of America

Competing Interests

All authors have participated in research supported by vaccine manufacturers but they consider that these relationships are not material to the subject of the manuscript. The authors confirm that these relationships do not alter their adherence to all the PLOS ONE policies on sharing data and materials. RTM is a global health consultant based in Sedona, AZ, USA. The authors confirm that his affiliations do not alter their adherence to all the PLOS ONE policies on sharing data and materials.

Author Contributions

Conceived and designed the experiments: EASN DEB RTM. Analyzed the data: EASN. Wrote the paper: EASN DEB RTM.