1. SEARO –CSR Early Warning and Surveillance System Module Event-based Surveillance

2. SEARO –CSR Early Warning and Surveillance System Module Surveillance system EWAR Event basedCase based Report signal Report signal Outbreak investigation Evaluation Introduction to surveillance Role of IHR EWAR Structure, Prioritization of diseases, Case definitions Signal generation and verification GIS System evaluation Outbreak investigation Alert Routine weekly, monthly and quarterly reporting

3. SEARO –CSR Early Warning and Surveillance System Module Objectives of this lecture To provide an overview of event based surveillance and of the event management system

4. SEARO –CSR Early Warning and Surveillance System Module Introduction Case vs Event Management Identify Assess Inform Assist Event-based surveillance is the organized and rapid capture of information about events that are a potential risk to public health.

5. SEARO –CSR Early Warning and Surveillance System Module Introduction Case vs Event Management Identify Assess Inform Assist Events related to the occurrence of disease in humans, Events related to potential exposure for humans. Events

6. SEARO –CSR Early Warning and Surveillance System Module Introduction Case vs Event Management Identify Assess Inform Assist Case based vs Event Based EWAR Event Based Surveillance AIM: Rapid detection, reporting, confirmation, assessment of public health events. OUTPUT: Immediate reporting. Event Based Surveillance AIM: Rapid detection, reporting, confirmation, assessment of public health events. OUTPUT: Immediate reporting. Case Based Surveillance AIM: Systematic reporting of cases of disease, commonly Health care facility based. OUTPUT: Daily, Weekly reporting. Case Based Surveillance AIM: Systematic reporting of cases of disease, commonly Health care facility based. OUTPUT: Daily, Weekly reporting. Information for Action

7. SEARO –CSR Early Warning and Surveillance System Module Introduction Case vs Event Management Identify Assess Inform Assist Event Management Standardized process for managing events that threaten international health security

8. SEARO –CSR Early Warning and Surveillance System Module Introduction Case vs Event Management Identify Assess Inform Assist Event Management GOALPRINCIPLE Events are detected early Timeliness Reactions are appropriate Proportionality The international community is provided with timely and accurate information about the event Information sharing Effective international assistance is made available Assistance

9. SEARO –CSR Early Warning and Surveillance System Module Introduction Case vs Event Management Identify Assess Inform Assist Step 1 Identify Scan Screen Verify

10. SEARO –CSR Early Warning and Surveillance System Module Definition EWAR and IHR Objectives Framework Steps 1. Data 2. Signals 3. Verification 4. Response 5. Communication M&E No Would the event be relevant? Yes Immediate verification required? Status Decision Process Irrelevant event Submitted Event No Verification within 24 hours Event not verified Yes Verification Signal Information from selected sources Information flow in an Event Management System

11. SEARO –CSR Early Warning and Surveillance System Module Introduction Case vs Event Management Identify Assess Inform Assist Step 2 Assess Assist, Monitor, or Discard.

12. SEARO –CSR Early Warning and Surveillance System Module Introduction Case vs Event Management Identify Assess Inform Assist Step 3 Inform Through: The IHR event information site, The WHO websites, GOARN, Disease/hazard specific networks, Media talking points.

13. SEARO –CSR Early Warning and Surveillance System Module Introduction Case vs Event Management Identify Assess Inform Assist Step 4 Assist Through: Technical advice, Specialized materials, Deploying and supporting international teams to affected areas, and/or Coordinating international support.

14. SEARO –CSR Early Warning and Surveillance System Module Question Time Why would I choose to implement event based surveillance as a component of my EWAR system? What would be the advantages for my Health System as a whole?

15. SEARO –CSR Early Warning and Surveillance System Module IHR - Event notification and determination Community concern Media Private/public clinicians concern Public services, agencies Health care system Lab Pharmacies HOT LINE Informal system Event-based Surveillance Health system based Signal Yes ALERT Public health risk identified Unusual disease pattern ? Event verified ? Public health Significance? International Concern? PHEIC Investigation & control Notification to WHO Yes Early Warning Response Source Status Decision Action IHR National Focal Point IHR WHO Focal Point