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[your facility’s name/logo here] Preparing For Pandemic Flu. What our healthcare workers need to know. Influenza virus, X 500,000. Acknowledgements. These training materials were developed by Kay Koelemay, MD and Jeffrey Duchin, MD Public Health – Seattle & King County with support from
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[your facility’s name/logo here]Preparing For Pandemic Flu What our healthcare workers need to know Influenza virus, X 500,000
Acknowledgements These training materials were developed by Kay Koelemay, MD and Jeffrey Duchin, MD Public Health – Seattle & King County with support from the University of Washington and The National Institutes of Health Region X Center of Excellence for Biodefense and Emerging Infectious Diseases Questions? Public Health 206-296-4774
User’s Guide • Seven separate modules • The Basics 21 slides • Government Agencies 10 slides • Decision-Makers and Authorities 14 slides • How is Seasonal Flu Transmitted? 16 slides • Pandemic Flu and Your Job 11 slides • Infection Control and Patient Care: What Do I Wear? 26 slides • Influenza Preparedness Plan 36 slides
User’s Guide • Modules are designed to be customized with facility-specific information for training health care providers and non-clinical staff regarding facility pandemic planning • Modules can also be used for self-study • Notes provide additional talking points • Review questions follow several modules • May customize with facility-specific questions • Presenters should review to be sure information in the presentation is current
BIRD FLU
Pandemic Influenza The basics Module 1
Human Influenza • “Seasonal” influenza • three types: A, B, and C • 3 influenza viruses currently circulate worldwide: • 2 type A strains (currently H1N1 and H3N2) • 1 type B strain • adults may have partial immunity (protection) to seasonal flu • have had past infections with related flu viruses • no pre-existing immunity to a new virus that is dramatically different from past viruses
I N F L U E N Z A What Do the “H” and “N” Mean?Proteins on the surface of the virus Hemagglutinin (HA) (15 types exist in nature) Neuraminidase (NA) (9 types exist in nature) Genes
Human InfluenzaTransmission • Influenza spreads readily from person to person • primarily thought to spread by respiratory droplets • lesser role for airborne spread and indirect contact • May be transmitted from infected persons who appear well (mild or asymptomatic infection) • Short incubation period – average 2 days (range 1-4 days) • May be spread 24 hours before onset of symptoms and during the symptomatic period http://www.cdc.gov/flu/professionals/infectioncontrol/healthcarefacilities.htm
Human InfluenzaVaccine • Influenza virus is continually changing • allows it to evade the immune system • Flu vaccine must be made yearly • based on best projection of the types of influenza virus that will be circulating • ~36,000 Americans die each year from flu-related causes • All healthcare workers should get the annual influenza vaccination http://www.cdc.gov/mmwr/preview/mmwrhtml/rr5408a1.htm
Avian Influenza: Bird Flu • Influenza A viruses infect birds = “avian influenza” or “bird flu” • can be mild or severe in birds • usually do not cause human disease • Highly pathogenic avian influenza A (H5N1) has infected birds in more than 50 countries since ‘97 • Not currently present in birds in North America
Current Outbreak: Avian Influenza A (H5N1) • 12 countries have reported human cases • all cases involved close contact with infected poultry or ill family members • no sustained person-to-person transmission • mortality rate is high in human avian flu infections • remains very difficult for humans to get • is still a disease of birds
Current Outbreak of Avian Influenza A (H5N1) • There is NO current human influenza pandemic • The United States and many other countries are preparing for a possible severe influenza pandemic because: • the avian influenza (bird flu) outbreak is widespread and not able to be controlled • the virus can infect humans and cause severe illness • an avian influenza virus evolved to cause a catastrophic human pandemic in 1918
Pandemic Influenza • A new strain of influenza can evolve • when an avian virus mutates or changes • from a combination of an avian and human virus • If the new strain infects humans and is able to spread easily from person to person: • humans would have little or no immunity • it would rapidly travel around the world and cause high levels of disease and death • “Pandemic” = global outbreak of disease • occur naturally at variable intervals • are not always severe
Origins of Pandemic Influenza Belshe RB. N Engl J Med. 2005; 353:2209-11
20th Century Influenza Pandemics • 1918-19: “Spanish flu” A (H1N1) • most severe pandemic known • new influenza virus subtype emerged and spread around the globe in 4 - 6 months • 20-50 million deaths worldwide • 500 - 650,000 deaths in the U.S. • Ten times as many Americans died of influenza than died in World War I
20th Century Influenza Pandemics • 1957-58 - “Asian flu” A (H2N2) • first identified in China in late Feb 1957 • spread to the U.S. by June (4 months) • 70,000 deaths in the U.S. • 1968-69 - “Hong Kong flu” A (H3N2) • detected in Hong Kong in early 1968 • spread to U.S. later that year. • 34,000 deaths in the U.S. • H3N2 continues to circulate
Influenza Pandemics: Summary • Pandemics vary in severity • Not possible to predict in advance how severe the next pandemic will be, but we know from history that they can be severe • Not possible to know in advance when the next pandemic will occur • When it does occur, it will spread rapidly
Potential Pandemic Impact: King County Adapted from Pandemic Influenza Response Plan, Public Health – Seattle & King County, available at: http://www.metrokc.gov/health/pandemicflu/plan/index.htm
WHO Pandemic Flu Phases ► Adapted from “National Strategy for Pandemic Influenza Implementation Plan,”http://www.whitehouse.gov/homeland/nspi_implementation.pdf
1918 Influenza Pandemic Courtesy of the National Museum of Health and Medicine, Armed Forces Institute of Pathology, Washington, D.C
Review Questions: Module 1 • Pandemic flu and avian (bird) flu are the same. True False • Avian (bird) flu is easily transmitted to humans. True False • In the 20th Century there were 3 flu pandemics. True False • A severe influenza pandemic would have a major impact on the health care system True False
Government Agencies Roles and responsibilities Module 2
World Health Organization (WHO) • Monitors influenza activity and pandemic conditions worldwide • Issues guidelines for national pandemic planning and preparedness • Coordinates international activities • Declares the global pandemic phase • Formulates ethical guidance for pandemic planning (http://www.who.int/ethics/influenza_project/en/ )
U. S. Department of Health and Human Services (HHS) • Overall coordination of the public health and medical emergency response during a pandemic • Determines pandemic response stage for U.S., based on the WHO global phase
Centers for Disease Control and Prevention (CDC) • Guidance on disease control and prevention strategies • National surveillance and epidemiological activities • Strategic National Stockpile • Guidance on disease containment measures to reduce transmission (travel restrictions, social distancing, isolation & quarantine, etc.) • Health and medical guidance
Washington State Department of Health (WADOH) • Assures statewide planning and preparedness • State Public Health Lab is CDC Lab Response Network reference lab • Requests federal assistance through the Governor, including medication from the Strategic National Stockpile (SNS)
Public HealthSeattle & King County • Facilitates and coordinates countywide health response planning & preparedness • King County Healthcare Coalition • Coordination with emergency management response • Conducts local surveillance to monitor human disease • Provides local guidance for health and medical response
Public Health Seattle & King County • Provides guidelines for surveillance, clinical management, infection control, and disease containment strategies for local use • Provides updates about the local situation to guide local response efforts • Procures and manages governmental (public) antiviral and vaccine stockpiles • Provides communications to the public, healthcare providers, media, elected officials, business & community leaders throughout a public health emergency
King County Healthcare Coalition • Collaboration among Public Health, hospitals, ambulatory care facilities, other health agencies, and emergency management officials to improve response to health emergencies across all sectors of the healthcare system • Voluntary organization • Currently includes 28 healthcare organizations & agencies • Open to all health care organizations providing services in King County
Working Groups: Medical Directors Acute Care (Region 6 Committee) Critical Care Ambulatory Care Infectious Disease Legal Regional Medical Resource Center Call Center Project Alternate Care Facilities Future Planning: Workforce Issues & Medical Staffing Finance & Reimbursement Pediatric Care Long Term Care Palliative Care Healthcare Coalition Workgroups
[your facility’s name/logo here]Healthcare Coalition Representatives • Executive member:__________________ • Work group members • Medical Directors WG:__________________ • Region 6 Committee:___________________ • Critical Care WG:______________________ • Infectious Disease WG:_________________ • Ambulatory Care WG:__________________ • Other:_______________________________
Decision-Makers and Authorities Who makes decisions in a large-scale health emergency? Module 3
Statutory Authority: Emergency Management • The County Executive and the heads of cities: • can proclaim emergencies and issue emergency orders in their jurisdictions • The Governor • can proclaim an emergency in all or part of the state and issue emergency orders • Emergency orders can include: • Curfews, closure of public places, closure of businesses • Such other orders as are necessary for the protection of life and property
Statutory Authority: Public Health • Health officials have broad authority and may act without a proclamation of an emergency. • The State Secretary of Health • advises Local Health Officers and could exercise direct authority in local matters, if necessary. • The Local Health Officer can take action to “…control and prevent the spread of any dangerous, contagious or infectious disease within his or her jurisdiction.”
Emergency Management and Public Health: Coordination • The heads of government and health officials have broad powers to protect the public • during an emergency, actions would be coordinated through incident command structures • The Local Health Officer is the only official who can order isolation and quarantine
Isolation and QuarantineIsolation • Separation and restricted movement of illpersons with contagious disease • often in a hospital setting • primarily applied on an individual level, but may be applied to populations • often voluntary, but may be mandatory • fundamental, commonly used public health practice (usually voluntary) • Prevents spread to others
Isolation and QuarantineQuarantine • Separation and restriction of movement of persons presumed to have been exposedto an infectious disease, but who are not yet ill • may be in home or residential facility • voluntary or mandatory • monitored for development of illness • lasts at least as long as the usual incubation period of the infection • Prevents spread to others
Quarantine: Statutory Authority 1 • Intrastate quarantine power (within the state) • Local and state public health officials have authority for quarantine when an infectious disease outbreak is confined within state borders • Considered a police power- an inherent authority to protect health and welfare of citizens • Reserved to states (10th Amendment)
Quarantine: Statutory Authority: 2 • Foreign and interstate quarantine • Considered essential in regulation of foreign and interstate commerce • Federal authority (Commerce Clause) • Limited to diseases named in Executive Order • CDC manages federal quarantine, with possible utilization of assets from other agencies • CDC may intervene in intrastate incidents if requested by state or if local control efforts are considered inadequate
Purpose of Quarantine: 1 • One of several “community containment” strategies to prevent spread of serious infectious diseases • Applied to persons who have been exposed (contacts) but are not ill • Designed to meet two objectives • Allow early recognition of symptoms as and as early treatment, if the exposed person becomes ill • Reduce transmission to others before illness has been clinically recognized
Purpose of Quarantine: 2 • Quarantine is more likely to be used: • when the disease is severe • when there are limited or no other treatments or prevention options (drugs, vaccine) • when the disease spreads easily or rapidly through populations • when appropriate resources are available to meet the needs of persons who are quarantined
Additional Potential Community Containment Strategies • Isolation for ill persons at home or in hospital • Home quarantine for household members of ill persons • Close schools and day care centers • Keep children and teens at home
Additional Potential Community Containment Strategies • Limit group/public assembly • Cancellation of large public events • Decrease mass public transit • Close public places where people gather • Restrict nonessential travel • Avoid close contact in public and at work (social distancing)
Review Questions: Module 3 1. Isolation is commonly used in hospitals for patients with certain infections. True False 2. Quarantine can be done at home. True False 3. A quarantine is separation and restriction of movement of well persons. True False 4. During a severe pandemic, schools may close and children and teens may need to stay home for months. True False