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Johnson County Public Health. Partnership for Emergency Planning January 19, 2006. Influenza Overview. Description Viral infection that can make people of any age ill Respiratory transmission Symptoms Fever Chills Cough Sore throat Headache Muscle aches. Prevention Vaccination - PowerPoint PPT Presentation
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Johnson County Public Johnson County Public Health Health
Partnership for Emergency PlanningPartnership for Emergency Planning
January 19, 2006January 19, 2006
Influenza OverviewInfluenza Overview
Influenza “The Flu”Influenza “The Flu”
DescriptionDescription Viral infection that can Viral infection that can
make people of any age illmake people of any age ill Respiratory transmissionRespiratory transmission
SymptomsSymptoms FeverFever ChillsChills CoughCough Sore throatSore throat HeadacheHeadache Muscle achesMuscle aches
PreventionPrevention VaccinationVaccination Stay home if illStay home if ill
Influenza: Who, Where, Influenza: Who, Where, and When?and When?
Nearly everyone susceptible every yearNearly everyone susceptible every year Illnesses, hospitalizations, deaths Illnesses, hospitalizations, deaths Usually older, younger and those with chronic illnessUsually older, younger and those with chronic illness Influenza and complications (pneumonia)Influenza and complications (pneumonia) Most of us have some degree of immunity from Most of us have some degree of immunity from
repeated exposures!repeated exposures! EverywhereEverywhere
Can’t predict with certaintyCan’t predict with certainty SeasonalSeasonal
WinterWinter
Colds and Flu: The Colds and Flu: The DifferenceDifference The flu strikes suddenly, colds develop The flu strikes suddenly, colds develop
gradually and fever is unusualgradually and fever is unusual Influenza is seasonal (winter), colds are Influenza is seasonal (winter), colds are
present year roundpresent year round Flu has generalized symptoms, colds Flu has generalized symptoms, colds
are usually confined to upper are usually confined to upper respiratoryrespiratory
Only three types of virus cause the flu, Only three types of virus cause the flu, more than 200 cause coldsmore than 200 cause colds
Composition of the 2005-Composition of the 2005-2006 Influenza Vaccine2006 Influenza Vaccine
A/California/7/2004 (H3N2)A/California/7/2004 (H3N2)
A/New Caledonia/20/99 (H1N1)A/New Caledonia/20/99 (H1N1)
B/Shanghai/361/2002B/Shanghai/361/2002
Naming the Influenza VirusNaming the Influenza Virus
A /Fujian /411 /2002 (H3N2)A /Fujian /411 /2002 (H3N2)
Virustype
Geographic Origin
StrainNumber
Year of Isolation
VirusSubtype
Influenza AInfluenza A Seen in many animalsSeen in many animals Subtyped based on surface Subtyped based on surface
glycoproteins:glycoproteins: Hemagglutinins (H) Hemagglutinins (H) Neuraminidases (N)Neuraminidases (N)
Yearly epidemicsYearly epidemics H1, H2, H3H1, H2, H3 Mortality variesMortality varies
Responsible for known pandemicsResponsible for known pandemics
www.omedon.co.uk/influenza/ influenza/
Hemagglutinin
Neuraminidase
Influenza B and CInfluenza B and C Influenza BInfluenza B
Humans mostlyHumans mostly Not subtypedNot subtyped Less mortality than type ALess mortality than type A Associated with epidemics, not Associated with epidemics, not
pandemicspandemics
Influenza CInfluenza C Usually mild diseaseUsually mild disease
Drift vs. ShiftDrift vs. Shift
Antigenic DriftAntigenic Drift:: ‘‘A & B’A & B’ viruses viruses
Minor change, same Minor change, same subtypesubtype
Caused by genetic Caused by genetic mutationmutation
May result in May result in epidemicepidemic
Antigenic Shift:Antigenic Shift: ‘‘A’A’ Virus Virus Major change, new Major change, new
subtypesubtype Caused by change in Caused by change in
gene segments gene segments (genetic reassortment)(genetic reassortment)
May result in pandemicMay result in pandemic
Difference between Difference between Epidemic and PandemicEpidemic and Pandemic
Epidemic/outbreak: increase in cases in Epidemic/outbreak: increase in cases in a community clearly greater than what is a community clearly greater than what is normally expected.normally expected.
Pandemic: a global disease outbreak.Pandemic: a global disease outbreak.
Annual Flu Impact Annual Flu Impact NationallyNationally
5%-20% of the population gets the flu5%-20% of the population gets the flu
200,000 hospitalizations200,000 hospitalizations
36,000 deaths36,000 deaths
Potential Pandemic Potential Pandemic ImpactImpact
Potential impact of pandemic influenza:Potential impact of pandemic influenza: Attack rates up to 35%Attack rates up to 35% 89,000 to 207,000 deaths89,000 to 207,000 deaths >25% increased demand for inpatient >25% increased demand for inpatient
beds and assisted ventilationbeds and assisted ventilation 314,000 – 733,000 hospitalizations314,000 – 733,000 hospitalizations Up to $166 billion in direct medical costsUp to $166 billion in direct medical costs Significant social and economic disruptionSignificant social and economic disruption
www.cdc.gov/ncidod/eid/vol5no5/meltzer.htm
Pandemic InfluenzaPandemic Influenza
Experts believe that another pandemic is Experts believe that another pandemic is inevitable.inevitable.
There will be very little warningThere will be very little warning Outbreaks will probably occur simultaneously Outbreaks will probably occur simultaneously
throughout the US.throughout the US. The effect on individual communities will be The effect on individual communities will be
prolongedprolonged Healthcare workers will be at increased risk.Healthcare workers will be at increased risk.
2020thth Century Pandemics Century Pandemics
SpanishSpanish 19181918 H1N1H1N1 20 million 20 million deathsdeaths
AsianAsian 19571957 H2N2H2N2 70,000 70,000 deathsdeaths
Hong Hong KongKong
19681968 H3N2H3N2 34,000 34,000 deathsdeaths
AvianAvian 1997-20041997-2004 H5N1H5N1 Potential Potential pandemicpandemic
Pandemic InfluenzaPandemic Influenza
Pandemic Risk?Pandemic Risk?
Three conditions must be met:Three conditions must be met:
A new influenza virus subtype emerges;A new influenza virus subtype emerges;
It infects humans, causing serious illness;It infects humans, causing serious illness;
It spreads easily and sustainably among It spreads easily and sustainably among humanshumans
www.ukans.edu
http://www.riley.army.mil/OurPost/Maps.asp
http://hellokansascity.com/images/Liberty%20Memorial%201921.jpg
http://www2.okstate.edu/ww1hist
Slide from: http://www.pbs.org/wgbh/amex/influenza/index.html
Recognizing Avian Recognizing Avian InfluenzaInfluenza
Clinical Features of Avian Clinical Features of Avian (H5N1) Influenza(H5N1) Influenza
Influenza-like symptomsInfluenza-like symptoms
Eye infectionsEye infections
Encephalitis, MeningitisEncephalitis, Meningitis
Severe pneumonia or ARDSSevere pneumonia or ARDS
Internal bleeding and hemorrhagesInternal bleeding and hemorrhages
Avian (H5N1) InfluenzaAvian (H5N1) Influenza
Rapidly mutatesRapidly mutates Documented to cause severe disease in Documented to cause severe disease in
birds and humansbirds and humans Birds that survive infection shed virus in Birds that survive infection shed virus in
feces for weeks.feces for weeks. Has been passed from animals to Has been passed from animals to
humans rarely and Not EASILY.humans rarely and Not EASILY.
Courtesy of National Geographic October 2005
Courtesy of National Geographic October 2005
Courtesy of National Geographic October 2005
What Must Occur For H5N1 What Must Occur For H5N1 to Increase Transmissibility to Increase Transmissibility to Humans?to Humans?
““Reassortment”: genetic material is Reassortment”: genetic material is exchanged between human & avian exchanged between human & avian viruses during co-infection of a human or viruses during co-infection of a human or pig;pig;
““Mutation” which is a more gradual Mutation” which is a more gradual process. process.
HumanHuman virusvirus
HumanHuman virusvirus
ReassortantReassortantvirusvirus
ReassortantReassortantvirusvirus
Non-humanNon-humanvirusvirus
Non-humanNon-humanvirusvirus
Influenza Virus Reassortment (Shift)
16 HAs16 HAs9 NAs9 NAs
16 HAs16 HAs9 NAs9 NAs
DIRECTDIRECTDIRECTDIRECT
Pandemic Response:Pandemic Response:VaccineVaccine
Development Development ManufacturingManufacturing
6 – 8 month minimum for first batch6 – 8 month minimum for first batch Technical problems possibleTechnical problems possible
Distribution to state agenciesDistribution to state agencies 5 – 6 more months to produce all 5 – 6 more months to produce all
vaccinevaccine
AntiviralsAntivirals
Can reduce seasonal influenza:Can reduce seasonal influenza: Oseltamivir (Tamiflu)Oseltamivir (Tamiflu) Zanamivir (Relenza)Zanamivir (Relenza)
2 older drugs:2 older drugs: amantadineamantadine rimantadinerimantadine
Johnson County Public Johnson County Public Health Health Disease ContainmentDisease Containment
Surveillance/Surveillance/EpidemiologyEpidemiology Identify public health threatIdentify public health threat Disease Containment (DC) collaborates Disease Containment (DC) collaborates
with Health Officer, state and other with Health Officer, state and other appropriate agenciesappropriate agencies
Determine appropriateness for I or QDetermine appropriateness for I or Q Notify law enforcement/legal whether Notify law enforcement/legal whether
voluntary or mandatedvoluntary or mandated Information disseminationInformation dissemination
New Isolation and New Isolation and Quarantine Law Per HB Quarantine Law Per HB 22642264
The I&Q bill was passed as part of HB 2264The I&Q bill was passed as part of HB 2264 Signed into law on 4-12-05Signed into law on 4-12-05
Clarifies the local health officer’s authority to Clarifies the local health officer’s authority to order isolation and quarantine of infected order isolation and quarantine of infected persons or groupspersons or groups
Gives the local health officer the authority to Gives the local health officer the authority to order persons exposed to infectious disease to order persons exposed to infectious disease to seek medical evaluation or treatmentseek medical evaluation or treatment
Orders law enforcement officials to assist in the Orders law enforcement officials to assist in the execution or enforcement of health officer’s execution or enforcement of health officer’s ordersorders
Public Health OptionsPublic Health Options
Implement “Snow Day” restrictionsImplement “Snow Day” restrictions Close schools, daycare centers, etc.Close schools, daycare centers, etc. Cancel large public gatherings (concerts, theaters)Cancel large public gatherings (concerts, theaters) Minimize other exposures (markets, churches, travel Minimize other exposures (markets, churches, travel
restrictions)restrictions) Ask non-essential workers to stay homeAsk non-essential workers to stay home Consider additional measuresConsider additional measures
Distribution of surgical masks?Distribution of surgical masks? Temperature screening in public venuesTemperature screening in public venues Scaling back transportation servicesScaling back transportation services
What You Can DoWhat You Can Do
Report unusual events/absenteeismReport unusual events/absenteeism
Contact Health DepartmentContact Health Department
Business point of contact? Business point of contact?
What You Can DoWhat You Can Do
Educate staffEducate staff Develop and practice healthy habitsDevelop and practice healthy habits Be aware of your area…break chain of Be aware of your area…break chain of
transmissiontransmission Stay home if sickStay home if sick Family illnessFamily illness
Mouse1,676 Germs
per sq. in.
Keyboard3,295Germs
per sq. in.
Desktop20.961Germs
per sq. in.
80%80% of germs are of germs are transmitted transmitted by hands:by hands:
Hands spread germsHands spread germs
Germs cause illnessGerms cause illness
Illness cost moneyIllness cost money
Wash HandsWash Hands
When someone coughs or sneezes…..on youWhen someone coughs or sneezes…..on you After shaking someone’s handAfter shaking someone’s hand Each time you return to your deskEach time you return to your desk After you use the restroomAfter you use the restroom After using the water cooler or coffee potAfter using the water cooler or coffee pot Before you eat lunchBefore you eat lunch After going through your mailAfter going through your mail After touching moneyAfter touching money Whenever you need a refreshing break,Whenever you need a refreshing break, Before you go home for the dayBefore you go home for the day
Germiest Workplaces:-phones-desks
-computer keyboards-buses
-restrooms-day care centers
-escalators & elevators
Johnson County Public Johnson County Public Health Emergency Health Emergency ResponseResponse
Mass Prophylaxis Mass Prophylaxis Dispensing (MPD)Dispensing (MPD)
Epidemiology and Investigation have determined that there is Epidemiology and Investigation have determined that there is something going onsomething going on
They have notified appropriate agenciesThey have notified appropriate agencies Now what?Now what?
Is there something we can give?Is there something we can give? MedicationMedication VaccinationVaccination
Who is going to get these medications/vaccinations?Who is going to get these medications/vaccinations? Those Those *most* at risk *most* at risk based on Epidemiology and Investigationbased on Epidemiology and Investigation Priority ProphylaxisPriority Prophylaxis
Those providing support and assistance with Dispensing operationsThose providing support and assistance with Dispensing operations Critical InfrastructureCritical Infrastructure
Open Site Community Dispensing combined with Closed Site Open Site Community Dispensing combined with Closed Site DispensingDispensing
General Public General Public Dispensing only if deemed necessaryDispensing only if deemed necessary
New Concept for New Concept for Closed Site Dispensing of Closed Site Dispensing of MedicationsMedications
Health Department would contact the Business Health Department would contact the Business Point of Contact (BPOC) and notify them of Point of Contact (BPOC) and notify them of decision to Dispensedecision to Dispense
BPOC would receive appropriate forms and BPOC would receive appropriate forms and health information to distribute to staffhealth information to distribute to staff
MedicationsMedications For Dispensing of pills, BPOC would bring For Dispensing of pills, BPOC would bring
completed forms to designated Open Site completed forms to designated Open Site Forms would be processed and BPOC would be Forms would be processed and BPOC would be
provided the medications/prescriptions to take back provided the medications/prescriptions to take back to workers/familiesto workers/families
New Concept for New Concept for Closed Site VaccinationClosed Site Vaccination
Health Department would contact the Business Health Department would contact the Business Point of Contact (BPOC) and notify them of Point of Contact (BPOC) and notify them of decision to Dispensedecision to Dispense
BPOC would receive appropriate forms and BPOC would receive appropriate forms and health information to distribute to staffhealth information to distribute to staff
VaccinationVaccination For vaccination, Johnson County would coordinate For vaccination, Johnson County would coordinate
with the businesses to which sites/when with the businesses to which sites/when workers/families should bring completed forms to workers/families should bring completed forms to Open SitesOpen Sites
Business InterestBusiness Interest
If interested, please contact me to set up If interested, please contact me to set up a meeting/discussiona meeting/discussion
Process needs individualization and Process needs individualization and further discussion further discussion
QUESTIONS?QUESTIONS?
Contact InformationContact InformationNancy TauszNancy Tausz
Disease Containment DirectorDisease Containment [email protected]@jocogov.org
913-826-1222913-826-1222
Ida NesmithIda NesmithDisease Containment Program ManagerDisease Containment Program Manager
[email protected]@jocogov.org913-826-1270913-826-1270
Liz TicerLiz TicerPublic Health Emergency CoordinatorPublic Health Emergency Coordinator
[email protected]@jocogov.org913-477-8316913-477-8316