Funding for this research was provided by:
Bill and Melinda Gates Foundation to the International Vaccine Institute
Received: 7 February 2018
Accepted: 22 April 2019
First Online: 15 May 2019
Ethics approval and consent to participate
: The study was approved by the Research Review Committee and the Ethical Review Committee of the icddr,b, Dhaka, Bangladesh, and the Institutional Review Board of the International Vaccine Institute. A data safety monitoring board also approved the study and monitored the progress of work. Written informed consent was obtained from all participants. In the case of minor participants, consent was obtained from the parents or guardians on the same consent form. The study is registered at (ExternalRef removed). Identifier: NCT02027207; 23 / 12 / 2013.
: Not applicable.
: The authors declare that they have no competing interests.
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