Review estimates mortality and complications in hospitalized patients with severe Lassa fever
The pooled mortality estimate for severe illness had wide uncertainty. Acute kidney injury, abnormal bleeding and nervous system complications were also reported in the hospital studies.
Based on the published abstract. The full paper may contain additional methods, results and limitations.
The 30-second takeaway
The review estimated substantial mortality among patients hospitalized with severe Lassa fever and identified acute kidney injury, abnormal bleeding and central nervous system dysfunction as important complications. These findings describe the hospital populations included in the research. They should not be generalized to everyone infected with Lassa virus or treated as evidence that a particular treatment improves survival.
Most studies were retrospective and conducted in Nigeria. Complication estimates varied markedly across studies, and the mortality confidence interval was wide. The abstract does not state patient follow-up periods.
What researchers found
Mortality in severe Lassa fever
Pooled mortality proportion among hospitalized patients with severe Lassa fever; confidence limits are percentages. No comparator or patient follow-up period is reported in the abstract.
Who the estimate describes
Researchers combined published studies of hospitalized patients, with most evidence coming from Nigeria. The pooled mortality estimate concerns severe Lassa fever in this hospital context; the abstract does not estimate mortality across all infections.
What proposed responses mean
The authors call for better diagnostics, vaccines and treatments in response to the clinical burden. These are proposed priorities; the abstract provides no comparison showing whether any particular strategy reduces complications or deaths.
The original publication
Clinical Outcomes of Severe Lassa Fever in West Africa: A Systematic Review and Meta-Analysis.
Okwuraiwe AP, Onyeaghala CA, Ozoude OT et al.
Int J Environ Res Public Health · 2025
- PubMed ID
- 41154908
- Record checked
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