The Nigeria Centre for Disease Control and Prevention (NCDC) has confirmed 11 new cases of Lassa fever and two related deaths across four states within one week.

According to the agency’s latest situation report for Epidemiological Week 37, the new infections were detected in Ondo, Bauchi, Kogi, and Anambra States. The figures show a slight decline from the 13 cases reported in the previous week.

According to the center from January to Week 37, a total of 7,673 suspected cases and 895 confirmed infections have been recorded across 21 states and 106 local government areas.

Within the same period, 166 deaths have been reported, representing a case fatality rate (CFR) of 18.5 per cent which is an increase from the 16.9 per cent recorded in 2024.

The report further revealed that 90 per cent of all confirmed cases originated from five high-burden states, which are; Ondo (33%), Bauchi (23%), Edo (18%), Taraba (13%), and Ebonyi (3%) while the remaining 10 per cent were spread across 16 other states.

Although the overall number of suspected and confirmed cases in 2025 is lower than that of the same period in 2024, the NCDC expressed concern over the rising fatality rate.

Lassa Fever: NCDC reports 11 new cases, two deaths across four states