Funding for this research was provided by:
University of Kwa-Zulu Natal, South Africa
National Research Foundation Incentive Funding for Rated Researchers (85595)
Received: 16 August 2017
Accepted: 20 February 2018
First Online: 9 March 2018
Ethics approval and consent to participate
: Ethical clearance was approved by the joint Committee of Human Research Publications and Ethics, School of Medical Sciences, Kwame Nkrumah University of Technology, Research and Development Unit of the Hospital Administration (ref: CHRPE/AP/015/15) and the Biomedical Research Ethics Committee of University of Kwa-Zulu Natal (ref: BE 494/14). Informed consent was obtained from all participants, and from parents or guardians for minors in written form either signed or by a thumb print after explanation of the procedure and the purpose of the study.
: Not applicable
: Professor Essack is a member of the Global Respiratory Infection Partnership sponsored by an unrestricted educational grant from Reckitt and Benckiser, UK. The other authors have no competing interest to declare.
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