Received: 30 January 2020
Accepted: 19 May 2020
First Online: 5 June 2020
Ethics approval and consent to participate
: This study was approved by the health research ethics committees of the Government of Burkina Faso (decision no. 2015/10/06) and of the University of Montreal Hospital Research Centre (decision no. 15–190). Verbal consent was obtained from the respondents to the household questionnaire. For children providing samples, at least 1 parent provided consent.
: Not applicable.
: The authors declare that they have no competing interests.