By Huldah Shado
The Nigeria Centre for Disease Control and Prevention (NCDC), has reported 142 deaths and 747 confirmed cases of Lassa fever across 18 states in the country.
According to the agency’s Week 22 epidemiological report for 2025, the case fatality rate (CFR), currently stands at 19.0 percent, slightly higher than the figure recorded during the same period in 2024.
The NCDC stated that new confirmed cases increased from six in Week 21 to eight in Week 22. Ondo, Bauchi, Edo, and Nasarawa states accounted for the latest cases.
Cumulatively, 91 percent of all confirmed cases have been recorded in five states: Ondo (31%), Bauchi (25%), Edo (16%), Taraba (16%), and Ebonyi (3%).
The affected population is predominantly within the 21–30 age group, with a median age of 30. The male-to-female ratio among confirmed cases is 1:0.8.
Although there has been a decrease in both suspected and confirmed cases compared to the same period in 2024, the NCDC remains on high alert.
It continues to coordinate national response efforts through its multi-sectoral and multi-partner Incident Management System (IMS).
The agency stressed the need for sustained support to affected states and communities, as well as continuous public education on Lassa fever prevention and control.
Nigerians, especially those in high-risk areas, are urged to remain vigilant and take necessary precautions to prevent infection.
In response to the outbreak, the NCDC has intensified intervention efforts, including conducting a Lassa fever dynamic risk assessment and integrating Lassa fever messaging into broader viral haemorrhagic fever (VHF), communication strategies.
The agency also launched an Infection Prevention and Control (IPC) e-learning platform.
Ten National Rapid Response Teams have been deployed to ten states to support local outbreak control efforts under the One Health approach.
Additionally, IPC guidelines for VHFs have been printed and distributed to health facilities nationwide, with support from the Robert Koch Institute.
The NCDC has further strengthened IPC structures across states, including the Orange Network and treatment centres, to enhance compliance with standard precautions and reduce hospital-acquired infections in high-burden local government areas and states.