The Nigeria Centre for Disease Control and Prevention (NCDC) has confirmed 13 new cases of Lassa fever during the 40th epidemiological week, covering 29 September to 5 October 2025.
In its latest situation report shared via its official X handle, the NCDC stated that the fresh infections occurred in Ondo and Edo States, two of the worst-affected areas since the start of the year.
According to the update, Nigeria has now recorded a total of 924 confirmed cases and 172 deaths across 21 states and 106 Local Government Areas (LGAs) in 2025. The Case Fatality Rate (CFR) currently stands at 18.6 per cent, up from 17.0 per cent during the same period in 2024.
The report also revealed 117 new suspected cases within the week, bringing the cumulative suspected cases for the year to 8,041.
The NCDC noted that over 90 per cent of all confirmed cases have originated from Ondo, Bauchi, Edo, Taraba, and Ebonyi States, which remain the epicentres of the outbreak.
The Centre reaffirmed its commitment to strengthening surveillance, laboratory testing, risk communication, and infection prevention and control across the country to limit further spread.
Health authorities urged Nigerians to maintain clean surroundings, avoid contact with rodents, and store food safely to reduce the risk of infection. They also advised anyone experiencing symptoms such as persistent fever, sore throat, chest pain, or vomiting to seek immediate medical attention at the nearest health facility for early diagnosis and treatment.
The NCDC added that it is continuing to work with state health ministries, development partners, and community stakeholders to ensure an effective response and adequate care for affected individuals.