This is a descriptive cross-sectional study of epidemiological surveillance data on diphtheria in Niger from 2013 to 2022. 
The study population consists of all diphtheria cases notified in the national surveillance database of the Direction de la Surveillance et de Riposte aux Epidémie du Niger between January 1, 2013 and August 31, 2022. 
Diphtheria notification forms are used to reconstitute the database of notifiable diseases (MDO). The captured data are collected and cleaned. 
Data analysis was performed using Epi info 7.2.5.0 and Excel 2016 software. We performed a descriptive analysis of the Diphtheria data in terms of time, place, and people. Our results are presented in tables and graphs to characterize the cases.


