In its latest epidemiological update released on Monday, the NCDC reported 65 new cases in the last week of February, down from 77 infections recorded the previous week. Despite this reduction in new infections, the agency expressed concern over a sharp increase in the case fatality rate, which has risen to over 23 percent—up from just under 19 percent during the same period last year.
The NCDC attributed the higher death toll to delayed treatment among infected individuals, noting that many patients seek medical care late, when the disease is already advanced. Poor sanitation and low levels of public awareness in high-burden communities were also identified as key factors contributing to severe outcomes.
“The increase in fatality is likely linked to late presentation of cases, as well as gaps in sanitation and public awareness in affected areas,” the agency stated.
To address the situation, the NCDC said it is intensifying response efforts across affected states. Measures include strengthening surveillance systems, expanding contact tracing, deploying rapid response teams to outbreak hotspots, and providing personal protective equipment to healthcare facilities to protect frontline workers.
Data from the report indicate that individuals aged 21 to 30 years remain the most affected demographic. Infections among healthcare workers have also increased, raising further concern within the health sector.
Lassa fever, first identified in 1969 in the town of Lassa, is part of the same viral hemorrhagic fever family as Ebola and Marburg virus disease. The illness commonly begins with fever and vomiting, and in severe cases, can lead to internal bleeding. While approximately 80 percent of infections remain asymptomatic, delayed diagnosis and treatment increase the risk of life-threatening complications.
Health authorities emphasize that there is currently no licensed vaccine for Lassa fever, highlighting the critical importance of early detection, prompt medical attention, and preventive practices, including proper sanitation, rodent control, and public education.