Lassa fever has claimed 214 lives in Nigeria, with the Case Fatality Rate climbing to 25 percent, according to the Nigeria Centre for Disease Control and Prevention (NCDC), in its Lassa Fever Situation Report for Week 23 (June 1 to June 7).
The report stated that new confirmed cases held steady in week 23, matching the count from week 22. Infections were reported in Edo, Ondo, Bauchi and Ebonyi, with no new healthcare worker infections reported. It further stated that the outbreak has spread across 23 states and 109 Local Government Areas since January 2026.
According to the report, five states which account for 84 percent of all confirmed cases, are Ondo with 28 percent, Bauchi with 25 percent, Taraba with 15 percent, Edo with 10 percent, and Benue with 6 percent. The remaining 16 percent of cases are spread across 18 other states with confirmed infections.
The predominant age group of those affected, the report said, is 21-30 years, with cases ranging from one to 93 years and a median age of 30 years.
According to the NCDC, surveillance and case management efforts continue across the 23 affected states.
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