Nigeria records 1,115 Lassa fever cases, 263 deaths across 24 states
Nigeria recorded 1,115 confirmed Lassa fever cases and 263 deaths across 24 states as of epidemiological week 38 (September 14–20, 2026), according to the NCDC situation report. The case fatality rate rose to 23.6 percent, up from 18.5 percent during the same period in 2025. Although new infections declined to 11 cases that week—down from 17 the previous week—cases were still reported in Ondo, Edo and Taraba states. Five states—Bauchi, Ondo, Taraba, Benue and Edo—accounted for 87 percent of all confirmed infections, and the predominant age group affected was people aged 21 to 30 years. No new healthcare worker was infected during the week under review.
The rising fatality rate signals a worsening outcome for patients, and the concentration of cases in a few states highlights where transmission is most intense. Lassa fever spreads mainly through contact with food or household items contaminated by infected rodents, with human‑to‑human transmission possible in healthcare settings when infection prevention is weak. The disease primarily affects working‑age adults, which can strain families and the workforce, and any lapse in hospital controls risks further spread among patients and staff.
The NCDC urges the public to avoid rodent contact, keep food covered, maintain clean surroundings, and promptly report suspected fever cases to health facilities. Healthcare workers should strictly follow infection‑prevention protocols, use protective equipment, and isolate suspected cases. While no new health‑worker infection this week is encouraging, sustained vigilance is essential to curb the outbreak and prevent further loss of life.