The data was released in the agency’s latest situation report published on Tuesday.
So far, 127 deaths have been recorded, reflecting a Case Fatality Rate (CFR) of 18.8%, which is slightly higher than the 18.5% CFR reported during the same period in 2024.
States with the highest number of deaths include:
-
Taraba – 31
-
Ondo – 26
-
Edo – 17
-
Bauchi – 12
-
Ebonyi – 11
-
Plateau – 5
-
Kogi – 4
Other states that have reported confirmed cases are Gombe (7), Benue (4), Nasarawa (4), Kaduna (2), Enugu (1), Delta (1), Cross River (1), and Ogun (1).
According to the NCDC, 71% of confirmed Lassa fever cases came from Ondo (30%), Bauchi (25%), and Edo (16%), while the remaining 28% were spread across 15 other states.
The report for epidemiological week 14 indicates a slight increase in confirmed cases, rising from 14 in week 13 to 15, with new cases reported in Ondo, Bauchi, Edo, Taraba, Ebonyi, and Gombe States.
The disease, caused by the Lassa virus, is an acute viral haemorrhagic illness spread primarily by multimammate rats, though other rodents may also serve as vectors.
The predominant age group affected is 21 to 30 years, with a median age of 30 years and an overall male-to-female ratio of 1:0.8.
The NCDC also noted a decrease in the number of suspected cases compared to the same period in 2024 and confirmed that no new healthcare worker was infected during the latest reporting week.
To tackle the outbreak, the National Lassa Fever Multi-Partner, Multi-Sectoral Incident Management System remains activated and is coordinating response efforts across all levels of government and partner agencies.
