Financial & competing interests disclosure
K Tapela and CO Olwal were supported by a WACCBIP-World Bank ACE PhD fellowship (ACE02-WACCBIP: Awandare) and a DELTAS Africa grant (DEL-15-007: Awandare). The DELTAS Africa Initiative is an independent funding scheme of the African Academy of Sciences (AAS)’s Alliance for Accelerating Excellence in Science in Africa (AESA) and supported by the New Partnership for Africa’s Development, Planning and Coordinating Agency (NEPARD Agency) with funding from the Welcome Trust (107755/Z15/Z: Awandare). The authors have no other relevant affiliations or financial involvement with any organization or entity with a financial interest in or financial conflict with the subject matter or materials discussed in the manuscript apart from those disclosed.
No writing assistance was utilized in the production of this manuscript.