ArticleFrontiers in public health2025
Event-based surveillance in the WHO African region: baseline implementation before the COVID-19 pandemic.
Article in Frontiers in public health, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Event-based surveillance (EBS) is a critical component of epidemic intelligence, supporting the timely detection of unusual public health events. However, prior to the COVID-19 pandemic, the status of EBS implementation across the WHO African region was not well documented. This study establishes a regional baseline of EBS modalities in place before the pandemic to inform future surveillance system evaluation and strengthening. We conducted a cross-sectional survey across all 47 WHO Member States in the African region between December 2019 and February 2020. A structured questionnaire was disseminated through WHO Country Offices to assess the presence, characteristics, and functionality of EBS modalities-including health facility-based EBS (HEBS), community-based surveillance (CBS), and media monitoring. Quantitative data were analyzed descriptively, while qualitative responses underwent thematic analysis. Thirty-seven countries (78.7%) responded, of which 84% (
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