ArticleBMC infectious diseases2024
Evaluation of the sentinel yellow fever surveillance system in Uganda, 2017-2022: strengths and weaknesses.
Article in BMC infectious diseases, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
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Who cites it
5 citing papers in PubMed.
- Yellow Fever Outbreaks and Reactive Vaccination in Africa, 2010-2025: A Scoping Review and Analysis.Research square · 2026Article
- Modeling policy decisions to mitigate the risk of emerging arboviral diseases under ecological changes in Uganda: Proposing a one Health in all policies approach.One health (Amsterdam, Netherlands) · 2026Article
- Community perceptions of yellow fever and its treatment practices in regions with reported outbreaks in Uganda: A qualitative study.PLoS neglected tropical diseases · 2025Article
- Timeliness of yellow fever specimen collection and transport in Ghana, 2018-2022.PLOS global public health · 2025Article
- Insight into Preventing Global Dengue Spread: Nanoengineered Niclosamide for Viral Infections.Nano letters · 2024Review
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Authors and funding
11 authors.
Funding
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Abstract
backgroundUganda has a sentinel surveillance system in seven high-risk sites to monitor yellow fever (YF) patterns and detect outbreaks. We evaluated the performance of this system from 2017 to 2022.
methodsWe evaluated selected attributes, including timeliness (lags between different critical time points), external completeness (proportion of expected sentinel sites reporting ≥ 1 suspect case in the system annually), and internal completeness (proportion of reports with the minimum required data elements filled), using secondary data in the YF surveillance database from January 2017-July 2022. We conducted key informant interviews with stakeholders at health facility and national level to assess usefulness, flexibility, simplicity, and acceptability of the surveillance system.
resultsIn total, 3,073 suspected and 15 confirmed YF cases were reported. The median time lag from sample collection to laboratory shipment was 37 days (IQR:21-54). External completeness was 76%; internal completeness was 65%. Stakeholders felt that the surveillance system was simple and acceptable, but were uncertain about flexibility. Most (71%) YF cases in previous outbreaks were detected through the sentinel surveillance system; data were used to inform interventions such as intensified YF vaccination.
conclusionThe YF sentinel surveillance system was useful in detecting outbreaks and informing public health action. Delays in case confirmation and incomplete data compromised its overall effectiveness and efficiency.
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