Funding for this research was provided by:
Belgian Red Cross
Received: 15 May 2018
Accepted: 24 June 2019
First Online: 8 July 2019
Ethics approval and consent to participate
: The study research protocol obtained the ethical approval of the University of Zurich in Switzerland and of the ethical committee in Malawi (National Committee on Research in the Social Sciences and Humanities; NCRSH; Ref No: NCST/RTT/2/6). All procedures applied in the research study were in accordance with the Declaration of Helsinki. All study participants provided written informed consent.
: Not applicable.
: The authors declare that they have no competing interests.