Ethical approval
The formative study and the trial have been separately approved by the College Research and Ethical Review Committee (CRERC) of Kilimanjaro Christian Medical University College (KCMUCo) and the National Health Research Ethics Sub-Committee (NatHREC) of the National Medical Research Institute (NIMR) of Tanzania. Furthermore, the regional representatives of the Ministry of Health and the regional medical officer have been permitted to conduct the study. Approval for the trials was requested and obtained after we had designed the customized DAT.