Funding for this research was provided by:
Bill and Melinda Gates Foundation (OPP1169555)
Agence Nationale de la Recherche (ANR-13-JSV1-0004)
Fondation Simone Beer (00074147)
Received: 24 October 2019
Accepted: 15 May 2020
First Online: 24 May 2020
Change Date: 7 September 2020
Change Type: Correction
Change Details: An amendment to this paper has been published and can be accessed via the original article.
Ethics approval and consent to participate
: The present study was approved by the Ethics committee of the Institut des Sciences Biomédicales Appliquées in Benin (n°39 04/01/2018 & n°108 19/02/2018) and by the Ministry of Health in Benin (n°0300/MS/DC/SGM/DRFMT/SA). Women were included in the present study after providing a signed written informed consent (or orally and recorded consent, for two of them).
: Not applicable.
: The authors declare that they have no competing interests.