In its latest situation report, the NCDC said 717 confirmed cases had been recorded as of May 4, with Ondo, Edo, Bauchi, and Benue reporting cases in the current week alone.

The agency said while the number of new confirmed cases slightly decreased from 11 to 10 in the past week, the overall death toll remained “alarming”.

The report noted that 71 percent of all confirmed cases originated from three states — Ondo (30 percent), Bauchi (25 percent), and Taraba (16 percent) — signaling persistent hotspots despite nationwide interventions.

The report added that the most affected age group was 21 to 30, with the male gender appearing slightly more affected than the female, with a male-to-female ratio of 1:0.8.

The agency, however, said that no healthcare worker was infected in the current week, though 22 healthcare workers have been affected in 2025.

Nigeria has conducted multiple webinars, capacity-building trainings, and surveillance activities to combat the outbreak.

However, the agency said challenges to the responses were hampered by late presentation of cases, poor health-seeking behaviour, and low awareness levels in high-burden areas. It also said poor environmental sanitation contributed to disease spread.

The agency urged Nigerians to maintain hygiene, report symptoms early, and avoid contact with rodents and their secretions.

”The public is also encouraged to follow NCDC advisories and utilise the toll-free line 6232 for inquiries,” the report added.

On January 31, the NCDC 214 confirmed cases of Lassa fever and 39 deaths in the country.