Funding for this research was provided by:
National Institute of Allergy and Infectious Diseases (R37-AI032042, R01-AI122991)
Bill and Melinda Gates Foundation
Styrelsen för Internationellt Utvecklingssamarbete
Received: 13 January 2017
Accepted: 29 January 2018
First Online: 20 February 2018
Ethics approval and consent to participate
: The study protocol was approved by the Drugs Controller General of India, the ethics committee of the National Institute of Cholera and Enteric Diseases, the Health Ministry Screening Committee of India, and the International Vaccine Institute institutional review board.
: Not applicable.
: The authors declare that they have no competing interests.
: Springer Nature remains neutral with regard to jurisdi stitutional affiliations.