Funding for this research was provided by:
Erasmus Mundus Joint Doctorate (EMJD) Fellowship-TransGlobal Health Consortium (FPA 2013-0039 (SGA2016-1346))
Received: 13 March 2019
Accepted: 10 March 2020
First Online: 30 March 2020
Ethics approval and consent to participate
: The study design was approved by the Amsterdam Public Health science committee (WC2017-011). Maseno University Ethics Review committee (MSU/DRPI/MUERC/00391/17) Kenya and Imo state University Teaching Hospital (IMSUTH/SC/121) Nigeria approved the study. Informed consent was obtained from all study participants.
: Not applicable.
: The authors declare that they have no competing interests.