Funding for this research was provided by:
Canadian Institutes of Health Research (FDN-143218)
Received: 15 November 2019
Accepted: 9 August 2020
First Online: 20 August 2020
Ethics approval and consent to participate
: The national ethics committee of Benin and the ethics committee of the CHU de Québec – Université Laval, Quebec, Canada approved this study. A written informed consent was obtained from each participant. A financial compensation of 2,000 F CFA (approximately US $ 4) was granted to each participant to compensate for the time he spent for the study and his travel expenses.
: Not applicable.
: MA reports funding from the Canadian Institutes of Health Research (CIHR, grant # FDN-143218) that was used to support this study. MA also reports other funding from CIHR, the Bill & Melinda Gates Foundation, the Fonds de la recherche du Québec – Santé and the Public Health Agency of Canada unrelated to the present study. The other authors do not have any competing interests.