Funding for this research was provided by:
World Health Organization (Not Applicable)
National Institute of Health, KCDC (4845-300)
Received: 15 August 2019
Accepted: 27 January 2020
First Online: 3 February 2020
Ethics approval and consent to participate
: The study was approved by Research Institute for Tropical Medicine-Institutional Review Board on December 9, 2014 (RITM IRB 2013–038). A written informed consent in a language understood by the parents/guardians was given and explained to them. A completed and signed informed consent form from each participant was required prior to their inclusion to the study.
: Not applicable.
: The authors declare that they have no competing interests.