Funding for this research was provided by:
Wellcome (WT200086/Z/15/Z, Grant No. WT102350/Z/13/Z)
Medical Research Council (Grant No. MR/P025501/1)
Howard Hughes Medical Institute (US) and Bill and Melinda Gates Foundation (Grant No. OPP1099295)
Received: 8 July 2019
Accepted: 28 September 2019
First Online: 7 October 2019
Ethics approval and consent to participate
: Ethical approval for the study was obtained from Ifakara Health Institute’s Institutional Review Board (Ref. IHI/IRB/No: 007—2018), and from the Medical Research Coordinating Committee (MRCC) at the National Institutes of Medical Research (NIMR), Ref: NIMR/HQ/R.8a/Vol.IX/2895.
: Permission to publish this work was also obtained from the National Institutes of Medical Research (NIMR), REF: NIMR/HQ/P.12 VOL XXVIII/14.
: The authors declare that they have no competing interests.