About the Authors
- Marta C. Nunes
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Affiliation Department of Science and Technology/National Research Foundation: Vaccine Preventable Diseases and Medical Research Council: Respiratory and Meningeal Pathogens Research Unit, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa
- Anne von Gottberg
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Affiliation Respiratory and Meningeal Pathogens Reference Unit, National Institute for Communicable Diseases: A Division of National Health Laboratory Service, Sandringham, South Africa
- Linda de Gouveia
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Affiliation Respiratory and Meningeal Pathogens Reference Unit, National Institute for Communicable Diseases: A Division of National Health Laboratory Service, Sandringham, South Africa
- Cheryl Cohen
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Affiliation Epidemiology and Surveillance Unit, National Institute for Communicable Diseases: A Division of National Health Laboratory Service, Sandringham, South Africa
- Locadiah Kuwanda
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Affiliation Department of Science and Technology/National Research Foundation: Vaccine Preventable Diseases and Medical Research Council: Respiratory and Meningeal Pathogens Research Unit, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa
- Alan S. Karstaedt
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Affiliation Department of Medicine, University of the Witwatersrand and Chris Hani Baragwanath Academic Hospital, Johannesburg, South Africa
- Keith P. Klugman
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Affiliations Respiratory and Meningeal Pathogens Reference Unit, National Institute for Communicable Diseases: A Division of National Health Laboratory Service, Sandringham, South Africa, Hubert Department of Global Health, Rollins School of Public Health, and Division of Infectious Diseases, School of Medicine, Emory University, Atlanta, Georgia, United States of America
- Shabir A. Madhi
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* E-mail: shabirm@nicd.ac.za
Affiliations Department of Science and Technology/National Research Foundation: Vaccine Preventable Diseases and Medical Research Council: Respiratory and Meningeal Pathogens Research Unit, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa, Respiratory and Meningeal Pathogens Reference Unit, National Institute for Communicable Diseases: A Division of National Health Laboratory Service, Sandringham, South Africa
Competing Interests
The authors have read the journal's policy and have the following conflicts: Receipt of research funding (SAM, AvG, KPK) and consultancy from Pfizer (SAM, KPK). Receipt of research funding (SAM, AvG, KPK), consultancies and honoraria from GSK (SAM, KPK). Consultancy for Merck (KPK). This does not alter the authors' adherence to all the PLoS ONE policies on sharing data and materials.
Author Contributions
Analyzed the data: MCN LK. Contributed reagents/materials/analysis tools: ASK LdG AvG. Wrote the paper: MN SAM. Analysis design: MCN SAM AvG KPK LK CC. Acquired and managed the data: ASK LdG AvG.