Funding for this research was provided by:
Wellcome Trust (078460/Z/05/Z)
Text and Data Mining valid from 2019-10-22
Received: 23 April 2019
Accepted: 9 October 2019
First Online: 22 October 2019
Ethics approval and consent to participate
: This study was conducted in accordance with the declaration of Helsinki. Ethical approval was obtained from the London School of Hygiene & Tropical Medicine (LSHTM) ethics committee (No. 2067), the Gambia Government / Medical Research Council Joint Ethics Committee (SCC 979), and the Comité d’éthique du CNRS, Dakar, Senegal. Written (thumbprint or signature) informed consent was obtained from the guardians of all children.
: Not applicable.
: The authors declare that they have no competing interests.