Funding for this research was provided by:
Gottfried und Julia Bangerter-Rhyner-Stiftung
Novartis Stiftung für Medizinisch-Biologische Forschung (13A13)
R Geigy Stiftung
Amt für Ausbildungsbeiträge of Kanton Basel-Stadt
Bill and Melinda Gates Foundation (51413)
Received: 30 March 2019
Accepted: 9 August 2019
First Online: 3 September 2019
Ethics approval and consent to participate
: Ethical approval for the trial analysed within this study was obtained from the Ifakara Institutional Review Board (IHI-IRB) Certificate number: IHI/IRB/No:01-2012, from the Tanzanian National Institute for Medical Research (NIMR) Certificate number: NIMR/HQ/R.8a/Vol.IX/1428 and from the Interventions Research Ethics Committee of the London School of Hygiene and Tropical Medicine, ethics reference 6159. Permission to publish the data was obtained from the Tanzania National Institute of Medical Research.
: Not applicable.
: The authors declare that they have no competing interests.