Funding for this research was provided by:
Académie de recherche et d'enseignement supérieur
Received: 13 October 2020
Accepted: 29 May 2021
First Online: 9 June 2021
: The study was conducted in accordance with the Declaration of Helsinki for medical research involving human subjects [CitationRef removed]. Participants or their guardians (for those who were less than 18 years old) provided informed consent to participate in the study. The study protocol was approved by the Ethics Committee of the School of Public Health at University of Kinshasa in DRC (#: ESP MINESU 019/2016). Administrative authorizations were obtained from local healthcare facilities and authorities within each collection site, as well as from the NMCP.
: All authors read and approved the final manuscript for publication.
: The authors declare that they have no competing interests.