Updates are available Correction dated 2020-09-29

Article History

Received: 18 September 2017

Accepted: 26 February 2018

First Online: 6 March 2018

Change Date: 29 September 2020

Change Type: Correction

Change Details: An amendment to this paper has been published and can be accessed via the original article.

Ethics approval and consent to participate

: This study was approved by the University of Cape Town’s Health Sciences Faculty Human Research Ethics committee (HREC REF: 412/2011), South Africa, and by the WHO Research Ethics Review Committee, Switzerland. Consent forms were translated in local languages and completed by all participants who agreed to participate, and/or by their caregivers, where appropriate. Each district also received Ethical approval from their relevant local Research Ethics Committees: Institutional Review Board of the College of Health Sciences of Addis Ababa University, Ethiopia; Sangath Institutional Review Board, India; Indian Council of Medical Research, India; Nepal Health Research Council; Biomedical Research Ethics Committee, University of Kwa-Zulu Natal, South Africa; Research Ethics Committee of the School of Medicine, College of Health Sciences, Makarere University, Uganda; National Council of Science and Technology, Uganda.Written consent to participate was obtained by all participants and/or their caregivers, where appropriate. All consent forms were translated in local languages.

: Not applicable.

: The authors declare that they have no competing interests.

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