Nigeria Records 1,119 Lassa Fever Cases in 2025 – NCDC
The Nigeria Centre for Disease Control and Prevention (NCDC) has reported 1,119 confirmed cases of Lassa fever in 2025, with young adults identified as the most affected age group nationwide.
The data comes from the NCDC’s Lassa Fever Situation Report for Epidemiological Week 51, covering December 15–21, 2025, which provides details on cases, deaths, and affected states.
The report shows that people aged 21 to 30 accounted for the highest number of infections, with a median patient age of 30 years. Males were slightly more affected than females, reflecting differences in exposure or health-seeking behaviour in high-risk communities.
A total of 206 deaths were recorded among confirmed cases, resulting in a case fatality rate of 18.4%, up from 16.4% during the same period in 2024. D...










