The sixteen-point gap nobody had mapped

Five diseases — malaria, typhoid, cholera, COVID-19, tuberculosis — across 500 case reports. Where is treatment working, and where is it quietly failing?

Recovery rates ranged from 52.3% in Lagos to 68.3% in Kano — a 16-point spread that points to unequal healthcare access, not unequal disease. Ages 40–45 carried the highest case volume of any five-year band, with men slightly ahead of women, and all five diseases showed substantial volume in that range.

Six actionable policy recommendations: direct resources to low-recovery states, strengthen disease reporting and testing systems, and build age-specific interventions around the 40–45 cohort.