Lassa fever in Nigeria

Lassa fever · Nigeria · 8 WHO events across 8 calendar years (2012–2023).

Event log

Year	DON ID	ICD-10	ICD-11
2023	DON2817	A962	1D61
2022	DON2716	A962	1D61
2020	DON2615	A962	1D61
2019	DON2498	A962	1D61
2018	DON2410, DON2405, DON2400	A962	1D61
2017	DON2341	A962	1D61
2016	DON2249, DON2172	A962	1D61
2012	DON1640	A962	1D61

Annual cadence

Year	Events
2023	1
2022	1
2020	1
2019	1
2018	1
2017	1
2016	1
2012	1

Most active year: 2023 with 1 event.
Quiet years with no events: 4.

Position within the disease

• Nigeria is rank #1 of 13 for this disease.
• The country sits in the WHO AFR region.
• Last reported event: 2023 (3 years ago).

Regional peers (AFR)

8 countries in this region report this disease. Median event count: 2.

Country	Events
Nigeria ←	8
Togo	3
Benin	2
Liberia	2
Sierra Leone	2
Guinea	1
Ghana	1
Burkina Faso	1

How this disease ranks among Nigeria’s threats

Lassa fever is rank #1 of 12 diseases reported by Nigeria to the WHO. The full country profile is at the Nigeria Hub.