NCDC reports 1,086 Lassa fever cases

The Nigeria Centre for Disease Control and Prevention (NCDC) has declared that the country recorded 1,086 confirmed Lassa fever cases and 259 deaths across 24 states and 118 local government areas in 2026.

The agency said this in a statement on Tuesday, citing findings contained in its Lassa Fever Situation Report for epidemiological week 36, covering August 31 to September 6, the News Agency of Nigeria (NAN) has reported.

According to the report, 12 new confirmed cases were recorded in week 36, representing a decline from the 18 cases reported during epidemiological week 35 of this year nationwide.

“The new confirmed cases recorded during the reporting week were reported in Ondo, Edo and Kogi states, according to the latest Lassa fever situation report.

“The cumulative figures for week 36 showed that 259 deaths had been recorded among the 1,086 confirmed cases, representing a Case Fatality Rate (CFR) of 23.9 percent.

“The CFR remained higher than the 18.6 percent recorded during the corresponding period in 2025, according to the latest figures released by the disease control agency,” it said.

The agency said 24 states recorded at least one confirmed Lassa fever case across 118 local government areas, indicating that infections had been reported in several parts of Nigeria.

According to the report, 87 percent of all confirmed Lassa fever cases recorded this year were reported in Bauchi, Ondo, Taraba, Benue and Edo states.

“The predominant age group affected by Lassa fever remained people aged between 21 and 30 years, highlighting the continued impact of the disease among young adults,” it said.

The agency also reported that no new healthcare worker was infected during epidemiological week 36, maintaining the number of affected health workers recorded during the reporting period.

It said the latest figures followed the week 35 situation report, which recorded 18 new confirmed cases, down from 21 cases reported during epidemiological week 34 nationwide.

READ ALSO: Lassa: Oyo warns health workers, ‘treat every patient as infectious’

“The 18 confirmed cases recorded in week 35 were reported in Ondo, Edo and Bauchi states, according to the NCDC Lassa Fever Situation Report for the period.

“By the end of epidemiological week 35, Nigeria had recorded 1,074 confirmed Lassa fever cases and 258 deaths, with a Case Fatality Rate of 24.0 per cent.

“The CFR recorded by the end of week 35 was also higher than the 18.6 per cent recorded during the corresponding period in 2025, according to the NCDC report,” it said.

The statement said that 24 states had recorded at least one confirmed Lassa fever case across 118 local governments by the end of epidemiological week 35.

It added that the agency reported that 86 per cent of confirmed Lassa fever cases recorded by week 35 came from Bauchi, Ondo, Taraba, Benue and Edo states.

“The predominant age group affected during epidemiological week 35 was people aged between 21 and 30 years, according to the situation report released by the NCDC.

“No new healthcare worker was affected by Lassa fever during epidemiological week 35, as surveillance and response activities continued nationwide.

“The increase in cumulative confirmed cases from 1,074 in week 35 to 1,086 in week 36 reflects the additional 12 confirmed cases recorded during the latest reporting period.

According to the agency, NCDC will continue surveillance activities across affected states, monitoring confirmed cases, deaths and healthcare worker infections as part of the national response effort.