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Public Health Emergencies.ppt
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Transcript of Public Health Emergencies.ppt
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MARGARET K. SEMAKULA
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ObjectivesAt the end of the unit participants should be able to:Define concepts related to public health emergencies or disasters Identify the aetiologies and describe the common disasters in Uganda
Describe elements of disaster management cycle
Describe the activities to be undertaken during the various phases of an emergency/disaster
Discuss the activities undertaken at various levels of the emergency response structure.
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Definitions of Concepts - IEmergency Sudden, unexpected phenomenon Causing loss of lives and harm to population Destruction of community property Damage to environment (Pierre Perrin 1996)
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Definition - IIDisaster Defined as the confluence of risk and vulnerability (Wilches Chaux 1989) Risks x Vulnerability = Disaster
Any disruption of the human ecology that exceed the capacity of the community to function normally (Dick 1991)
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Definition - IIIDisasterA serious disruption of the functioning of a community or society causing widespread human, material, economic or environmental losses which exceed the ability of the affected community or society to cope using its own resources (WHO 1998).
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Definition -IV RisksProbability of harmful events to occur
VulnerabilityIncapacity to absorb the effects of a given change (individual, community, national levels)
Condition of exposure to (hazards, risks)
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Definition -VHazardsA life threatening of potentially damaging phenomenon
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Definition -VIDefinition of Complex Emergency (CE)Deep social crisis in which large numbers of people die from war, displacement, hunger owing to man made disasters (Klugman 1999)
Humanitarian crisis where there is break down in authority due to internal or external conflicts that requires international response (OCHA 1999)
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Characteristics of CEExtensive violence
Massive displacement
Wide spread damage to society-administrative, economic and political collapse
Long lasting and widespread
Exploitation of and exacerbation of existing differences (economic, social etc) within civil society.
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Characteristics of CEDispute over legitimacy of authority (government or rebels).
Vulnerable population at greatest risks.
Need for large scale multi-faceted humanitarian assistance.
Hindrance of assistance by political or military forces.
Catastrophic public health emergencies
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Vulnerability Types - ISocial Human (individual, family, community) and Institutional (lack-weak structure)
EconomicIndividual Family, Community, National and International
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Vulnerability Types- IIPoliticalAuthoritarian political regimeBureaucracyAbsence of disaster contingency planWeak legal system
Ecological Geo-physical and social behaviour
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Vulnerability FactorsHuman factorsSocio-demographic Cultural Immunity
Resourceshealth and social serviceshuman (trained personnel)
Environmental factorsWeather and climatic conditions
Socio-economic factorspolitical, economic situation
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Causes and Classification of Disasters - I Genesis-Aetiology Natural e.g earthquakes, volcano, cyclones Man made/technological e.g wars, nuclear disaster, terrorism
Speed of Onset/Impact Sudden onset e.g volcano eruption, earthquakes Slow onset e.g warfare, epidemics
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Causes and Classification of Disasters - IIHierarchyPrimary events-no human interventions
Secondary events, consequence of primary events
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Common Disasters In Uganda A.Natural DisastersDrought
Epidemics e.g. HIV/AIDs, malaria, Ebola
Floods
Landslides
Earthquakes
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Common DisastersB.Man made Technological
Conflicts - Forced displacements
Transport accidents
Environmental degradation and pollution
Fires
Structural collapse
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Disasters Management CycleIncludesPre-disaster phaseMitigation Preparedness
Disaster/Attack phase Response
Post-disaster phaseRecovery/rehabilitation
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Disaster ManagementDisaster risk managementIncludes Mitigation
Preparedness
Response
Recovery
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Disaster risk reduction (pre)Disaster risk reductionIncludes Mitigation Preparedness
Advantages of disaster risk reductionMore efficientMore cost effectiveMore humane
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MitigationStructural activities e.g.
Floods - building barriers
Earthquakes - Hospital constructed/designed to withstand
Droughts - Early warning systems
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Warning or Alert PhaseActivities Disseminate information
Institute safety and preventive measures
Review procedures and action plans
Ensure systems planned are in place
Supervise evacuation
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Preparedness PhaseBehavioural Activities Surveillance system
Training
Education
Inventory of resources
Collaboration with key response sectors
Resource mobilisation
Peace building
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Objectives of PreparednessIncludes Prevention of morbidity and mortality
Provision of care for casualty
Ensure restoration of normal lives
Re-establish health services
Protect staff
Protect public health and medical assets
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Disaster/Emergency Phase Activities
Manage casualties
Surveillance
Collect and disseminate data
Environmental health (water and sanitation)
Emotional and psycho-social support
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Recovery Phase Activities
Undertake needs and damage assessment
Rehabilitate individuals physically and psycho-socially.
Rehabilitate health and social services
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Emergency Response - Interventions (10 point priorities) in Refugee Settings IInterventions- Refugee Emergency Setting1. Initial Assessment
Measles Immunisation
Water and Sanitation
Food and Nutrition
5. Shelter and Site Planning
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Emergency Response Interventions - IIHealth Care in Emergency Situations
Control of Communicable Diseases
Public Health Surveillance
Human Resource Training 10. Co ordination
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Emergency Intervention1. Initial AssessmentHealth priorities identified on the basis of rapid collection and analysis of data.
Information collected on (e.g background of displacement, risk factors, resources required). Methods of data collection used - quantitative and qualitative techniques ( e.g sample surveys, mapping, interviews, observation etc).
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Emergency Intervention2. Measles ImmunisationSevere health problem, kills 1 in 10 children in developing countries.
Led to 40% child hood deaths Tuareg Camp Mauritania.
Factors associated with high prevalence of measles include overcrowding, poor hygiene, low immunisation).
Immunisation to target children 6 months to 15 years. Administered with Vit. A supplement.
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Emergency Intervention3. Water and SanitationWaterDrinking water is top priority
During first days 5 litres per person per day is required for physiological requirement
Recommended 20 litre/person/day
Poor and inadequate water is associated with diseases - water borne, water based, water washed, and water related diseases.
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Emergency InterventionWater and SanitationSanitation1st days emergency latrine 50-100 persons
Improved to 1 latrine for 20 persons
Ideally 1 per family
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Emergency Intervention4. Food and Nutrition - I Population movement both a cause and consequence of food shortage
Malnutrition is an important contributory cause of death
Common types of malnutritionProtein Energy malnutrition (PEM) spectrum i.e Kwashiorkor, Marasmus, Marasmic Kwashiorkor and Underweight).
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Emergency InterventionFood and Nutrition - ii Common types of malnutrition contd.Micro-nutritient deficiencies (Aneamia, Scurvy, Pellagra, Beriberi)
Food distribution General Supplementary and Therapeutic
Recommended 2100kcal/person/day
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Emergency Intervention5. Shelter and Site PlanningImportance of shelter ProtectionSecurityPrivacy
Recommended 3.5 sq metre per person
Appropriate shelter site Secure location away from border Access to water
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Emergency InterventionShelter and Site Planning (ii)Appropriate shelter site contd. Availability of landLocation population socially and culturally agreeable
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Emergency Intervention6. Health Care in EmergencyAims to reduce excess mortality in the emergency phase of displacement.
Curative, preventive care crucial.
Manuals and guidelines need be available for standardization.
Tier system of health care (hospital, health centre, health post, and outreach services).
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Emergency Intervention7. Control of Communicable DiseasesIntervention StrategiesAttack source of infection (e.g curative care, isolation etc)
Prevent transmission (e.g environment sanitation, personal hygiene etc)
Protect the susceptible (e.g immunisation, chemoprophylaxis etc)
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Emergency Intervention8. Public Health Surveillance - iSurveillance Defined as continuos systematic collection, analysis, interpretation of data and provision of feedback for the purpose of disease prevention and control
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Emergency InterventionPublic Health Surveillance - iiObjectives Provide early warning/detection of epidemics
Determine the main health problems and their trends
Plan health interventions
Evaluate the coverage and effectiveness of health interventions/programmes
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Emergency InterventionPublic Health Surveillance - iiiKey Principles of Surveillance During emergency limit data collection to diseases of public health importance (i.e preventable, high morbidity, mortality etc). Keep surveillance system simple.
Keep frequency of data transmission and analysis regular e.g weekly/monthly.
Data analysis be at field level
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Emergency Intervention9. Human Resource and TrainingObjective is to provide human resources capable of performing tasks in emergency programmes and organise services efficiently.
Determine training needs
Train personnel (on job, refresher course)
Co ordinate personnel activities
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Emergency Intervention10.Co-ordination - iRationale-Many actors e.g UN agencies NGOs, Hosts etc involved in service provision.
Goal is to achieve greatest impact through management and integration of activities.
Establish clear leadership.
Create co-ordinating bodies (e.g UNHCR for refugees)
Secondary events, consequence of primary events
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Emergency InterventionCo-ordination - iiEnsure priorities are shared
Rationalise services by establishing common standards Many actors e.g UN agencies NGOs, Hosts.
Ensure communication occurs amongst stakeholders
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Structure for Emergency Response - UgandaLevelStructure
NationalMinistries (Health)
DistrictDistrict Disaster Committee
Sub-districtSub-county Disaster Committee
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Structure and Functions - iNational LevelPolicy
Planning
Co-ordination
Resource mobilisation
Technical support
Hazards mapping
Reporting Research
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Structure and Functions - iiSub-National LevelPlanning
Implementation
Training
Co-ordination
Resource mobilisation
Reporting and communication