Funding for this research was provided by:
School of Tropical Medicine and Global Health, Nagasaki University, Japan.
Received: 21 June 2019
Accepted: 6 August 2020
First Online: 27 August 2020
Ethics approval and consent to participate
: The study protocol was approved by the National Ethical Committee for Health Research of Guinea (Ref 068/CNERS/17). It also fulfilled the requirements of the Ethical Review Board of the Institute of Tropical Medicine, Nagasaki University, Japan (Ref 170,707,167).Verbal informed consent was obtained for each participant prior to data collection and data were anonymized prior to analysis. The National Ethical Committee for Health Research of Guinea approved the use of verbal consent.
: Not applicable.
: The authors declare that they have no competing interests.