Funding for this research was provided by:
H2020 European Research Council (671055)
Received: 5 February 2018
Accepted: 18 July 2018
First Online: 8 October 2018
Ethics approval and consent to participate
: The study was approved by the Institutional Review Board of the University of Kisangani (CER/001/GEAK/2014) and the provincial division of the Ministry of Health, DRC. The purpose and the nature of the investigation were explained to participants or parents/guardians, including risks and benefits of each of the procedures. All participants or parents/guardians provided written informed consent (either by signature or by finger printing if the participant was unable to sign). Authorization to collect, transport and ship biological material were granted by the Faculty of Sciences of the University of Kisangani, DRC.
: Not applicable.
: The authors declare that they have no competing interests.