![](http://covid19.guardian.ng/wp-content/uploads/2024/06/1-1024x640.jpg)
Olugbenga Ogunmefun: A seasoned researcher advocating data for persons with disabilities
Olugbenga Ogunmefun is a trailblazing researcher whose impact has illuminated the development sector over his 25-year career as a consultant. He has carved out a specialised niche in health-based social research, sanitation,