Funding for this research was provided by:
Bill and Melinda Gates Foundation (OPP1142797)
Received: 6 September 2018
Accepted: 23 November 2018
First Online: 10 December 2018
Ethics approval and consent to participate
: The trial is being conducted following the ethical principles in the Declaration of Helsinki and good practice guidelines on the proper conduct of research. Institutional review board of icddr,b is the regulatory body for monitoring the progress of the trial. The trial has been reviewed and approved by the Research Review Committee (RRC) and Ethical Review Committee (ERC) of the Institutional Review Board of icddr,b (PR16031). Before staring enrolment of study participants, this trial has been registered with ExternalRef removed on 24 October 2016 and the trial registration number is NCT02944747. Informed written consents / assents were taken from the study participants (thumb impression were taken from the illiterate participants). In case of participants below 18 years, informed written consents were taken from the parents/legal guardians.
: Not applicable.
: The authors declare that they have no competing interests.
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