Funding for this research was provided by:
Muhimbili University of Health and Allied Sciences
Text and Data Mining valid from 2018-10-23
Received: 11 October 2017
Accepted: 11 October 2018
First Online: 23 October 2018
Ethics approval and consent to participate
: The study protocol was ethically approved by the Muhimbili University of Health and Allied Sciences (MUHAS) Institutional Review Board (IRB) in Dar es Salaam, Tanzania. Permissions to conduct the study from each of the six study sites. Before involvement in the study we obtained informed consent from the parents/guardians of the children for screening, and involvement in the study. Assent was also sought from participants aged between 10 and 15 years of age. Data and any information obtained during the study were kept strictly confidential with only the research team being allowed access.
: Not applicable
: The authors declare that they have no competing interests.
: Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.