About the Authors

Anita H. J. van den Biggelaar

Roles Data curation, Formal analysis, Investigation, Validation, Visualization, Writing – original draft, Writing – review & editing

Anita.vandenBiggelaar@telethonkids.org.au (AvdB); Peter.Richmond@uwa.edu.au (PR)

Affiliation Telethon Kids Institute, University of Western Australia, Perth, Western Australia, Australia

Peter C. Richmond

Roles Conceptualization, Funding acquisition, Methodology, Writing – review & editing

Anita.vandenBiggelaar@telethonkids.org.au (AvdB); Peter.Richmond@uwa.edu.au (PR)

Affiliation School of Paediatrics and Child Health, University of Western Australia, Perth, Western Australia, Australia

Angela Fuery

Roles Data curation, Investigation, Methodology, Writing – review & editing

Current address: Baylor College of Medicine, Houston, Texas, United States of America

Affiliation School of Paediatrics and Child Health, University of Western Australia, Perth, Western Australia, Australia

Denise Anderson

Roles Formal analysis, Writing – review & editing

Affiliation Telethon Kids Institute, University of Western Australia, Perth, Western Australia, Australia

Christine Opa

Roles Investigation, Project administration

Affiliation Papua New Guinea Institute of Medical Research, Goroka, Eastern Highlands Province, Papua New Guinea

Gerard Saleu

Roles Investigation, Writing – review & editing

Affiliation Papua New Guinea Institute of Medical Research, Goroka, Eastern Highlands Province, Papua New Guinea

Mildred Lai

Roles Investigation, Methodology, Writing – review & editing

Affiliation Papua New Guinea Institute of Medical Research, Goroka, Eastern Highlands Province, Papua New Guinea

Jacinta P. Francis

Roles Investigation, Methodology, Writing – review & editing

Affiliation Papua New Guinea Institute of Medical Research, Goroka, Eastern Highlands Province, Papua New Guinea

Michael P. Alpers

Roles Conceptualization, Writing – review & editing

Affiliation International Health, School of Health Sciences, Curtin University, Perth, Western Australia, Australia

William S. Pomat

Roles Conceptualization, Funding acquisition, Investigation, Methodology, Project administration, Supervision, Writing – review & editing

Affiliation Papua New Guinea Institute of Medical Research, Goroka, Eastern Highlands Province, Papua New Guinea

Deborah Lehmann

Roles Conceptualization, Data curation, Funding acquisition, Investigation, Supervision, Validation, Writing – review & editing

Affiliation Telethon Kids Institute, University of Western Australia, Perth, Western Australia, Australia

Competing Interests

Anita H.J. van den Biggelaar has received support from Pfizer Australia and GSK Australia to attend conferences. Peter C. Richmond is a former member of vaccine advisory boards for Wyeth and CSL Ltd; has received institutional funding for investigator-initiated research from GlaxoSmithKline (GSK) Biologicals and Merck; and has received travel support from Pfizer and Baxter to present study data at international meetings. William S. Pomat has received funding from Pfizer Australia to attend a conference. Deborah Lehmann was a member of the GSK Australia Pneumococcal-Haemophilus influenzae-Protein D conjugate vaccine (“Synflorix”) Advisory Panel; has received support from Pfizer Australia and GSK Australia to attend conferences; has received an honorarium from Merck Vaccines to give a seminar at their offices in Pennsylvania and to attend a conference; and is an investigator on an investigator-initiated research grant funded by Pfizer Australia. This does not alter our adherence to PLOS ONE policies on sharing data and materials.