Planning for Pandemic Flu

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Transcription:

Planning for Pandemic Flu To: Town of Middleton Administration From: Middleton Health Department 2008 1

Influenza In people, a disease of the respiratory tract caused by a virus and usually associated with fever, muscle aches and other symptoms Three types of influenza virus A: most frequent cause of annual epidemics, the type of influenza that causes pandemics B: also causes annual epidemics, usually milder C: causes colds, not epidemic 2

Influenza - Infectious Virus infects any part of the respiratory tract, from nose to throat to bronchial tract to lungs People with influenza highly infectious Infectious before symptoms start A lot of virus in secretions Coughing, sneezing, talking Time from exposure to symptoms (incubation period) can be as short as 2 days Infectious for 7-10 days, but infectiousness drops off after 5 days Young children can be infectious for 2-3 weeks 3

Influenza Viruses Reproduce with many mutations Many viruses in infection Some viruses selected to escape human immune response Genetic drift Gradual, continuous changes Frequently requires change in vaccine Genetic shift Major change Viruses combine in infected person or animal Virus jumps from birds 4

What is a pandemic? A sudden, widespread outbreak caused by a new strain of the influenza A virus. Because the virus is new, virtually no one is immune - all exposed could get sick. 5

Influenza pandemics... Spread rapidly throughout the world Result in an unusually high number of cases and deaths Last 1-2 years; may have a second wave Occurred in 1918, 1957, 1968 6

1918 influenza pandemic Most deadly outbreak of infectious disease ever 20-40 million or more died worldwide, 500,000 in U.S. 20% - 40% of population sick Quick to kill, especially healthy young adults 7

8

9

1957 and 1968 influenza pandemics 1957 Asian Flu (H2N2) 70,000 Americans died 1968 Hong Kong Flu (H3N2) 34,000 Americans died 10

Avian influenza in humans (H5N1) Hong Kong, 1997 Resulted in 18 human cases and 6 deaths Most transmission from chickens to humans Isolated instances of probable person-toperson transmission 11

World Health Organization (WHO) Confirmed human cases of H5N1 (as of March 18, 2008) 2003 2004 2005 2006 2007 2008 Total Cases Deaths Cases Deaths Cases Deaths Cases Deaths Cases Deaths Cases Deaths Cases Deaths Azerbaijan 0 0 0 0 0 0 8 5 0 0 0 0 8 5 Cambodia 0 0 0 0 4 4 2 2 1 1 0 0 7 7 China 1 1 0 0 8 5 13 8 5 3 3 3 30 20 Djibouti 0 0 0 0 0 0 1 0 0 0 0 0 1 0 Egypt 0 0 0 0 0 0 18 10 25 9 4 1 47 20 Indonesia 0 0 0 0 20 13 55 45 42 37 12 10 129 105 Iraq 0 0 0 0 0 0 3 2 0 0 0 0 3 2 Lao People's Dem Rep 0 0 0 0 0 0 0 0 2 2 0 0 2 2 Myanmar 0 0 0 0 0 0 0 0 1 0 0 0 1 0 Nigeria 0 0 0 0 0 0 0 0 1 1 0 0 1 1 Pakistan 0 0 0 0 0 0 0 0 1 1 0 0 1 1 Thailand 0 0 17 12 5 2 3 3 0 0 0 0 25 17 Turkey 0 0 0 0 0 0 12 4 0 0 0 0 12 4 Viet Nam 3 3 29 20 61 19 0 0 8 5 5 5 106 52 Total 4 4 46 32 98 43 115 79 86 59 24 19 373 236 12

Tracking H5N1 13

Pathways of Infection + = Mobile Groups A Source Key Components in the Spread of Disease Key Components in the Spread of Disease 14

Section 1 The Virus Begins to Spread WHO Pandemic Alert Phase 3 15

Why are we concerned about influenza? Very short incubation period (1-4 days, typically 2 days) Infectious prior to symptoms Severe disease may occur in children and young adults H5N1 has crossed the species barrier to infect humans Population susceptibility to an H5N1-like pandemic virus would be universal 16

Potential impact of next pandemic in Massachusetts Among our state s population of about 6.4 million could be 2 million clinically ill 1 million outpatient visits 80,000 hospitalizations 20,000 deaths 17

Potential impact of next pandemic in Massachusetts Outbreaks will occur simultaneously throughout the U.S. Up to 40% absenteeism in all sectors at all levels Order and security disrupted for several months, not just hours or days 18

Outline of Pandemic Flu in the US 19

Initial Situation 100 million chickens die in 8 countries Confirmed human cases in Vietnam and Thailand 2 cases of human-to-human transmission JAN FEB MAR APR MAY JUN JUL AUG 20

Virus Alert Little or no immunity in the general population Potential precursor to a pandemic Actions U.S. heightens disease surveillance and readies for a possible pandemic State and local agencies review continuity of operations plans, surge capacity plans and other emergency protocols JAN FEB MAR APR MAY JUN JUL AUG 21

Vaccine Availability 6.4 million Mass. residents will need 2 doses of vaccine, 1 month apart Vaccine is not currently available State issues general guidelines on priority groups for vaccine JAN FEB MAR APR MAY JUN JUL AUG 22

Increased Media Attention Possibility raised of a situation not as significant as the 1918 flu pandemic but much more serious than the 1968 pandemic, and potential vaccine shortage Some media sources declare that the government is not doing enough to prevent a potential catastrophe JAN FEB MAR APR MAY JUN JUL AUG 23

Questions for Community Planning: 1. What groups should we meet with now? 2. What plans should be reviewed and/or activated at this point to assist with: Risk communication Vaccine prioritization & distribution Provision of services and operations 3. How will our community respond to media attention and the need for public information at this point? 24

Questions (con t)) 4. What kinds of messages need to be crafted for the public before the outbreak occurs? How will our agency and community prepare to ensure the provision of essential services and operations during pandemic for your agency and community? 25

Section 2 The Virus Reaches the U.S. WHO Pandemic Phase 6 26

Pandemic Declared By mid-april, human cases of H7N3 have been reported in Hong Kong, Singapore, South Korea, and Japan. Although cases are reported in all age groups, young adults appear to be the most severely affected. Vaccine production has begun. In late April, human cases are identified in the United States. JAN FEB MAR APR MAY JUN JUL AUG 27

Pandemic Declared H7N3 spreads throughout multiple continents Cases reported in 18 U.S. states Three cases identified in Boston hospitals in early May President makes formal pandemic declaration JAN FEB MAR APR MAY JUN JUL AUG 28

Media Scrutiny Media coverage escalates Cable stations devote 24-hour coverage to worsening public health crisis Residents contact elected officials about frustrations over vaccine supply JAN FEB MAR APR MAY JUN JUL AUG 29

Impact in MA Residents demand vaccine Mayor of Boston urges Massport to close Logan Airport Some residents stay at home for fear of exposure to the flu JAN FEB MAR APR MAY JUN JUL AUG 30

Demand for Vaccine Labor unions and elderly advocacy groups complain of lack of vaccine for their constituents Demand for vaccine becomes stronger and serious questions raised about priority setting JAN FEB MAR APR MAY JUN JUL AUG 31

Large Crowd Warning Several mayors & town managers suggest that Fourth of July celebrations be cancelled Questions raised over whether summer activities for children should be cancelled JAN FEB MAR APR MAY JUN JUL AUG 32

Additional Community Questions 1. As you make plans for vaccinating, how will we be responding to the angry public that wants vaccine? 2. What plans have been developed to vaccinate priority groups after the first shipments of vaccine arrive? 33

Section 3 The Pandemic Escalates WHO Pandemic Phase 6 34

The Pandemic Escalates in MA Hundreds of deaths reported in MA Traditional health care services incapable of managing pandemic Clinics and hospitals face staff shortages JAN FEB MAR APR MAY JUN JUL AUG 35

The Pandemic Escalates in MA Many towns report 30% absenteeism among public safety workers because of illness Local officials discover that existing emergency operations plans do not adequately address pandemic-related needs JAN FEB MAR APR MAY JUN JUL AUG 36

The Pandemic Escalates in MA Communities across the state report difficulty in staffing essential services Prisons and jails on 24-hour lockdown Day care centers for children and the elderly are closed JAN FEB MAR APR MAY JUN JUL AUG 37

Vaccine Distribution MDPH receives first 50,000 doses of vaccine (of 12 million doses needed) Vaccine distributed to state, local health depts and hospitals for people in vaccine priority groups JAN FEB MAR APR MAY JUN JUL AUG 38

Media Saturation All media attention on the pandemic State and local authorities are being challenged about the effectiveness of pandemic preparedness policies AUG SEP OCT NOV DEC JAN FEB MAR 39

Final Situation Update 6,000 Mass. residents have died from influenza Based on past experience with pandemics, a second wave of outbreaks is expected to occur within 3-9 months of the end of the initial wave AUG SEP OCT NOV DEC JAN FEB MAR 40

Community Questions: 1. With 30% of the workforce out sick, how will we provide services to maintain consistent risk communication to our partners and the public? 2. With 30% of our workforce out sick, how do we plan to safeguard and monitor your vaccine? 3. What actions, resources, plans and support must be taken at the local level? 41

Local Responses to Pandemic Flu Decision-making process (Who, What Authority) 1. When (& if to) close schools? 2. Social Distancing (Canceling gathering events, etc.) and sheltering in place may be necessary to decrease transmission Proper communication to residents & employees Continuity of Operations for Town and Businesses 1. Keeping the town running (water, sewage, transfer station, buses, deliveries, paychecks, etc) 2. Keeping businesses running. Assuring the supply chain and adequate supplies of essentials, such as food, water, utilities, medicines, etc. in a just-in-time economy (just-in-time deliveries) 42

Local Responses to Pandemic Flu (con t) Mobilization of volunteer medical corps Setting up and running Emergency Dispensing Sites for vaccine administration 1. Crowd Control, Traffic Control, etc. Addressing Special Populations Continuous disease surveillance updates Supporting home emergency plan and supplies of staples Maintaining public order and essential community functions 43

Next Steps: Pandemic Planning Federal & State Government National & State Pandemic Influenza Preparedness Plans: www.pandemicflu.gov http://www.mass.gov/dph/cdc/epii/flu/pan demic_government.htm 44

What must we prepare for LOCALLY? Timely, effective communication planning. Surge capacity overflow within the health care system (personnel and hospital capacity) Protecting the health and safety of the most vulnerable citizens. Keeping the continuity of society. Surveillance / real time identification capability regarding flu outbreaks Effective education about respiratory hygiene/cough etiquette and other non-vaccine, non-medication ways of prevention How can we continue to prepare? 45

Local Planning Create a pandemic flu planning committee with, (but not limited to). Town Government Officials School/Education Reps Pharmacists Physicians, local hospital reps Clergy, Faith based Reps Middleton Chamber of Commerce / Business Reps Media Reps Funeral Directors Community Organizations 46

Local Planning Con t Incident Command Training for additional town employees Communications: Build on existing system (explore reverse 911, etc.) Special Populations Planning Risk Communication Planning: Town Public Information Officer (PIO) and PIO rep s from Dept s. Establish a Local Emergency Planning Committee in addition to a Pandemic Planning Committee Use a seasonal flu vaccine clinic as an exercise for pandemic flu response at Middleton s emergency dispensing site. 47

BOH Current Planning Efforts: BOH/Health Department continues to plan for pandemic flu (& other emergencies) Plans require community input, discussion, assistance and collaboration Plans are constantly evolving as situations are revealed Plans are no good if they are not tested, exercised, critiqued, by everyone involved with the planning. 48

Current Projects, Plans, and Efforts (con t) Incident Command System and National Incident Management Training for Health Department Completed by ALL Health Department Staff Medical Reserve Corp Middleton recently joined the newly formed Region 3A Medical Reserve Corp (consists of Amesbury, Merrimack, Boxford, Topsfield, Rowley, Middleton). Recruiting for Middleton volunteers will be conducted in 2008. Informational sessions and trainings are available for MRC volunteers. Family Disaster Plan Mailing Town-wide mailing to all residents with Family Disaster Plan brochure supporting the need for families to create home emergency supply kits and contact lists anticipated for fall of 2008. In addition to supporting the cause of check on your neighbor. Public Health Nurse Continue efforts to establish community public health nurse for proper communicable disease surveillance, vaccination, and emergency planning. 49

Development of Emergency Operations Plan Includes plans for all incident response, risk communication, emergency dispensing site identification & management, infectious disease response, and biological/chemical/radiological response Public Health Continuity of Operations Plan ( COOP) Ensure the execution of essential functions of the Board of Health during an emergency. Mutual Aid for Public Health Town Meeting Approval 2006, Roundtable with Region 3A and communities counsel tentatively planned for June 2008 to finalize language for towns to enter into inter-municipal agreements. Special Populations Planning Special populations plan drafted. Further Gathering of information on special populations in the community required. Will collaborate with. with the Senior Center, Police, and Fire, etc.). Region 3A Emergency Preparedness Coalition The Town of Middleton is one of fourteen communities in Region 3A that has been working on regional readiness planning. 50

Our Goal: When the pandemic has passed, and the impact of the wave recedes, we will be able to look back and know: That the Town of Middleton did everything it could; and That by having the right plans in place, and the capability to respond effectively and efficiently, we were able to come together to meet the challenges. We will be able to say that: We maintained essential services, We preserved life and minimized discomfort, We created a supportive caring network for our most vulnerable, We minimized the suffering of ALL our residents, and We protected our families and first responders 51

Most of the impact and most of the response will be local. 52

Sources The Massachusetts Department of Public Health and The Local Public Health Institute of Massachusetts World Health Organization: Avian Flu Data and Maps 53