non-pharmaceutical interventions. session outline non-pharmaceutical interventions (npi) concept...
TRANSCRIPT
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Non-Pharmaceutical Interventions
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Session Outline
Non-Pharmaceutical Interventions (NPI)
Concept and application
Components and levels of interventions
Deciding factors for use of NPI
Implementation of NPI
Evaluation
Scaling back
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Potential Tools in Our Toolbox
Vaccine – best countermeasure but will probably be unavailable during first wave of pandemic
Antiviral treatment – may improve outcomes but will have only modest effects on transmission
Antiviral prophylaxis – may have more substantial effects on reducing transmission
Non-pharmaceutical interventions – may reduce and delay transmission, giving time to prepare
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Non-Pharmaceutical Interventions
1. Delay disease transmission and outbreak peak2. Reduce peak burden on healthcare infrastructure3. Diminish overall cases and health impacts
DailyCases
#1
#2
#3
Days since First Case
Pandemic outbreak:No intervention
Pandemic outbreak:With intervention
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Non-Pharmaceutical Interventions
Individual level
Isolation
Quarantine
Infection control
Hand washing
Respiratory etiquettesStay away from ill persons/if ill
Use of Personal Protective Equipment (PPE)
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Non-Pharmaceutical Interventions
Community level
Quarantine of groups/sites
Community wide quarantine-Cordon Sanitaire
Measures to increase social distance
School closures
Business and market closure
Cancellation of events
Movement restrictions
Infection control measures
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Non-Pharmaceutical Interventions
National/International level
Non essential travel deferred
Provide information to travelers
Self recognition of illness and self reporting
Entry screening
Exit screening
Maritime/Airport quarantine
Ban of flights/ships originating from affected area
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Non-Pharmaceutical Interventions
Isolation
Separation and restricted movement of ill persons with contagious disease
Often in a hospital setting
Primarily individual level
Can be voluntary or legally mandated
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Non-Pharmaceutical InterventionsQuarantine
Refers to separation and restriction of movement or activities
Persons who, while not yet ill, have been exposed to an infectious agent and therefore may become infectious
Often at home, may be designated residential facility or hospital
Individual or community level
Can be voluntary or legally mandated
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Non-Pharmaceutical Interventions
Community wide quarantine-Cordon Sanitaire
Closing of community with barriers around a geographic area
Prohibition of travel in and out of the area Helpful in closed settings (Military Barracks, University
campuses etc.) or remote settings May be impractical in most settings
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Non-Pharmaceutical Interventions
Principles of Quarantine
Used when resources are available to implement and maintain essential services and care for those in quarantine
Used in combination with other interventions
Surveillance, diagnosis, treatment, and preventive interventions
Used only as long as necessary
Does not have to be absolute to be effective
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Non-Pharmaceutical Interventions
Social Distancing
Interventions applied to specific groups or community designed to reduce personal interactions and thereby transmission risk
Cancellation of events
Closure of schools, cinema, buildings
Restrict entry to certain sites/buildings (railway station etc.)
Not necessarily all of them are at risk of exposure Community level
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Non-Pharmaceutical Interventions
Closure of Schools and Facilities
SchoolsShould be implemented earlyEspecially useful if high morbidity among children
Business and market closures Access to and availability of necessitiesEconomic considerations
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Non-Pharmaceutical Interventions
Cancellation of Events
Population measures to increase social distance and reduce mixing
Discourage mass gatherings such as festivals and sporting events
Impact on economy
Cultural significance
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Non-Pharmaceutical Interventions
Movement Restrictions
Another population measure to increase social distance and reduce mixing
Restrictions on public transportation and public gatherings
Voluntary or involuntary work holidays
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National/International Level
Entry screening
Exit screening
Port/airport quarantine
Travel advisory
Ban on flights/ships
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Infection Control
Infection Control
Hand hygiene
Cough etiquette
Facemasks
Cleaning and disinfection of surfaces
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Implementation of Non-Pharmaceutical Interventions –
Critical Issues
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Non-Pharmaceutical Interventions
Legal and Institutional Frame/work
Legal provisions in the constitutional/central/federal/
provincial laws (laws differ by country)
Review existing laws prior to pandemic
Enforcing authority
Institutional mechanism
Voluntary adoption
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Non-Pharmaceutical Interventions
Implementation requires
Clear understanding of roles and responsibilities at all levels
Coordinated planning by many partners
Public health authorities, health/care providers, emergency response teams, law enforcement, transportation, civil aviation, shipping authorities
Trust and participation of the general public
Effective risk communication, support and coordination with community groups
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Non-Pharmaceutical Interventions
Risk Communication
Communicate the risk in clear consistent messages
Wide spread dissemination through media
One source for official information
Prevention of incorrect information
Allay psychological fear
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Non-Pharmaceutical Interventions
Health Monitoring and Medical Care
Regular health monitoring
Self health monitoring & Reporting
Hotlines to answer questions about signs and symptoms
Fever clinics
Effective medical care requires well trained staff
Ensure health care providers are available
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Non-Pharmaceutical Interventions
Scaling Back
Clear criteria are necessary prior to scaling back
Number of new cases
Spread of disease to surrounding areas
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Non-Pharmaceutical Interventions
Evaluation
Limited evidence about Non-Pharmaceutical interventions
currently exists
Opportunity to add to the body of evidence
Create evaluation plan prior to pandemic
Number of cases prevented
Unforeseen positive and negative impact
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Non-Pharmaceutical Interventions
Challenges
Infringes on personal freedom of movement
Feeling of isolation
Loss of income and employment
Requires plans/protocols for provision of essential services
Legally enforceable or voluntarily mandated
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Non-Pharmaceutical Interventions
Facilitating/enabling factors
Pre event planning and coordination Community preparedness (public understanding of the
process) Systems to communicate relevant messages Personal protection/chemoprophylaxis Essential supplies and services
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Recommendations for Non-Pharmaceutical Interventions
Phase 3 (Current)
Phase 4 & 5 (Rapid
response)
Phase 6 (Pandemic)
Isolation Yes Yes Yes
Quarantine No Yes Possibly
Identification of contacts Yes Yes No
Health monitoring Yes Yes No
Cordon sanitaire No Possibly No
Facility closure, movement restrictions, cancellation of events Possibly Yes Possibly
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Summary
Non-Pharmaceutical Interventions likely useful in delaying and
reducing disease transmission, and may decrease health and
human impact
Non-Pharmaceutical Interventions should be used in
coordination with other interventions, and early
implementation is crucial
All measures should be implemented within context of local
situation and culture
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Thank you