Introduction

The Nigeria Centre for Disease Control and Prevention has released its latest Lassa fever situation report, confirming an ongoing public health challenge across the country. The data provides critical insight into the scope and distribution of infections during 2026.

What Happened

According to the NCDC Lassa Fever Situation Report for epidemiological week 36, Nigeria recorded 12 new confirmed cases, bringing the cumulative total to 1,086. The report confirms 259 deaths among these cases, resulting in a Case Fatality Rate of 23.9 per cent. Infections were detected across 24 states and 118 Local Government Areas, with the highest concentrations in Bauchi, Ondo, Taraba, Benue, and Edo states.

Why This Matters

Lassa fever remains endemic in Nigeria, and the latest figures underscore the need for sustained surveillance and response. The Case Fatality Rate of 23.9 per cent, while slightly lower than the 24.0 per cent recorded at the end of the previous week, remains significantly higher than the 18.6 per cent reported during the same period in 2025. Young adults aged between 21 and 30 years continue to be the most affected demographic, and no new infections among healthcare workers were reported in the latest reporting period.

Key Takeaways

  • 1,086 confirmed Lassa fever cases have been recorded in Nigeria through September 2026.
  • Eighty-seven per cent of cases are concentrated in Bauchi, Ondo, Taraba, Benue, and Edo states.
  • The predominant age group affected is adults between 21 and 30 years old.
  • No new healthcare worker infections were reported in epidemiological week 36.
  • The Case Fatality Rate has decreased marginally from 24.0 per cent to 23.9 per cent, but remains above the 2025 benchmark.

Conclusion

With Lassa fever cases still concentrated in several key states, the NCDC emphasizes the importance of continued surveillance, community engagement, and strengthened health systems. The latest report provides critical data for authorities and stakeholders working to curb the spread and protect vulnerable populations across affected regions.