Event-based surveillance (EBS) is defined as the organized collection, monitoring, assessment and interpretation of mainly unstructured ad hoc info
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rmation regarding health events or risks, which may represent an acute risk to health. Both indicator-based and event-based surveillance components serve the early warning and response (EWAR) function of the public health surveillance system. The Framework for Event-based Surveillance offers guidance to public health practitioners seeking to implement EBS at each administrative level in healthier countries.
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Event-based surveillance (EBS) is defined as the organized collection, monitoring, assessment and interpretation of mainly unstructured ad hoc info
...
rmation regarding health events or risks, which may represent an acute risk to health. Both indicator-based and event-based surveillance components serve the early warning and response (EWAR) function of the public health surveillance system. The Framework for Event-based Surveillance offers guidance to public health practitioners seeking to implement EBS at each administrative level in their countries.
more
The Event-based Surveillance Framework is intended to be used by authorities and agencies responsible for
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surveillance and response. This framework serves as an outline to guide stakeholders interested in implementing
event-based surveillance (EBS) using a multisectoral, One Health approach. To that end, the document is arranged
in interlinked chapters and annexes that can be modified and adapted, as needed, by users.
This is a revised version of the original “Framework for Event-based Surveillance” that was published in 2018. This
framework does not replace any other available EBS materials, but rather builds on existing relevant or related
documents and serves as a practical guide for the implementation of EBS in Africa. This framework is aligned with
the third edition of the WHO Joint External Evaluation for the following indicators: strengthened early warning
surveillance systems that are able to detect events of significance for public health and health security (Indicator
D2.1); improved communication and collaboration across sectors and between National, intermediate and local
public health response levels of authority regarding surveillance of events of public health significance (Indicator
D2.2); and improved national and intermediate-level capacity to analyse data (Indicator D2.3). As countries begin
to implement and demonstrate EBS functionality they will ensure an increase in JEE scores and progress towards
meeting the requirements outlined in the IHR3F
Additionally, in African Union Member States that have adopted the Integrated Disease Surveillance and
Response (IDSR) strategy, this document is a complement to and can enhance the implementation of IDSR,
especially for the 3rd edition (2019) that includes components related to EBS.
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It is impossible to address the many complex needs of respiratory virus surveillance with a single surveillance system. Multiple systems, investigations and studies must each be fit-for-purpose to s
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pecific priority surveillance objectives, and only together can they provide essential information to policy-makers. In essence, each surveillance approach fit together as “tiles in a mosaic” that provides a complete picture of respiratory viruses and the impact of associated illnesses and interventions at the country level. This mosaic framework demonstrates how surveillance approaches may be implemented as coordinated and collaborative systems, well-matched to specific priority objectives.
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Early detection, assessment and response to acute public health events:
The importance of robust mortality surveillance systems cannot be overstated in an era marked by increasing global health challenges where health threats loom large and population dynamics continue to evolve. Accurate and timely mortality data is es
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sential for identifying trends and detecting emerging health threats, evaluating the impact of interventions, and guiding evidence-based policy decisions.
This framework outlines a holistic approach to strengthening routine mortality surveillance systems, considering the unique contextual factors and challenges faced by African countries. It emphasizes the importance of establishing efficient data collection mechanisms, enhancing data quality and completeness, and promoting data sharing and collaboration among stakeholders.
Moreover, the framework recognizes the pivotal role of technology in the integration of data from fragmented mortality data sources. It highlights the potential of innovative data capture methods, advanced analytics, and real-time reporting systems to enhance mortality data’s accuracy, efficiency, and timeliness.
The continental framework for mortality surveillance aligns with Africa CDC’s mission and strategic goal by serving as a fundamental component in strengthening public health systems, enhancing disease surveillance capacities and capabilities, informing evidence-based policies and interventions, and promoting collaboration and coordination among African countries to address health challenges and improve health outcomes on the continent.
The successful implementation of this framework requires collective commitment and concerted efforts from governments, health institutions, and the international community. We hope this document will serve as a catalyst for transformative change, enabling countries to build resilient mortality surveillance systems that protect public health, save lives, and contribute to evidence-based decision-making.
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L'importance de systèmes de surveillance de la mortalité robustes ne peut être surestimée à une époque marquée par des défis sanitaires mondiaux croissants, où les menaces sanitaires pèsent lourd et la dynamique des populations continue d'
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évoluer. Des données précises et opportunes sur la mortalité sont essentielles pour identifier les tendances et détecter les menaces émergentes pour la santé, évaluer l'impact des interventions et orienter les décisions politiques fondées sur des données probantes.
Ce cadre décrit une approche holistique pour renforcer les systèmes de surveillance de routine de la mortalité, en tenant compte des facteurs contextuels uniques et des défis auxquels sont confrontés les pays africains. Il souligne l'importance d'établir des mécanismes de collecte de données efficaces, d'améliorer la qualité et l'exhaustivité des données et de promouvoir le partage des données et la collaboration entre les parties prenantes.
De plus, le cadre reconnaît le rôle central de la technologie dans l'intégration des données provenant de sources de données fragmentées sur la mortalité. Il met en évidence le potentiel des méthodes innovantes de capture de données, des analyses avancées et des systèmes de notification en temps réel pour améliorer la précision, l'efficacité et l'actualité des données sur la mortalité.
Le cadre continental de surveillance de la mortalité s'aligne sur la mission et l'objectif stratégique d'Africa CDC en servant d'élément fondamental dans le renforcement des systèmes de santé publique, l'amélioration des capacités et des capacités de surveillance des maladies, l'élaboration de politiques et d'interventions fondées sur des données probantes et la promotion de la collaboration et de la coordination entre les pays africains pour relever les défis sanitaires et améliorer les résultats sanitaires sur le continent.
La mise en œuvre réussie de ce cadre nécessite un engagement collectif et des efforts concertés de la part des gouvernements, des établissements de santé et de la communauté internationale. Nous espérons que ce document servira de catalyseur pour un changement transformateur, permettant aux pays de mettre en place des systèmes de surveillance de la mortalité résilients qui protègent la santé publique, sauvent des vies et contribuent à la prise de décision fondée sur des données probantes.
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3rd edition. In 2001, Uganda adapted the Integrated Disease Surveillance and Response (IDSR) developed by World Health Organization (WHO) for member states in African region. The Ministry of Health has been implementing the IDSR strategy since then
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with success across the country. This strategy provides the opportunity for rational use of resources and maximises investments in health surveillance systems. The 3rd edition IDSR guidelines incorporates lessons learnt from previous
epidemics, new frameworks like the Global Health Security Agenda (GHSA), One Health, Disaster Risk Management (DRM), the WHO regional strategy for health security and emergencies, and the rising non-communicable diseases, and aims to strengthen implementation of IHR (2005) core surveillance and response capacities. These guidelines have been adapted to reflect national priorities, policies and public health structures; and shall be used in conjunction with other similar
guidelines/strategies or initiatives.
Overall, the 3rd edition technical guidelines will incorporate the following:
• Strengthening Indicator Based Surveillance
• Strengthening Event Based Surveillance
• Improving community-based disease surveillance
• Improving Cross Border Surveillance and response
• Scaling up e-IDSR implementation
• Improving reporting and information sharing platforms
• Improved data sharing across sectors
• Tailoring IDSR to Emergency or Disaster contexts
The 3rd edition guidelines are intended for use as:
• A general reference for surveillance activities across all levels
• A set of definitions for thresholds that trigger some action for response
• A stand-alone reference for level-specific guidelines on surveillance and response
• A resource for developing training, supervision and evaluation of surveillance activities
• A guide for improving early detection and preparedness for outbreak response.
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Advising principles. The purpose of this document is to support competent authorities in charge of IHR implementation to improve national capacities for the prevention, detection and control of events, by strengthening communications and coordination between points of entry and the national health
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surveillance system
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his guidance provides interim guidance for the integration of SARS-CoV-2 and influenza virologic and genomic surveillance, from sentinel site case enrolment and sampling to the eventual sharing of the virus sequence data, a process known as end-to-e
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nd surveillance. This guidance builds on experiences and lessons learned as countries adapted their influenza surveillance systems in the context of the COVID-19 pandemic and reviews new evidence to provide guidance on end-to-end surveillance. The guidance includes new algorithms and strategies to adapt sentinel systems to make them resilient and agile for addressing global and national surveillance needs for influenza and COVID-19.covid-
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22 July 2022. This document summarizes current WHO guidance for public health surveillance of coronavirus disease 2019 (COVID-19) in humans caused by infection with severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2).