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Seasonal and H1N1 Influenza. Slides can be adapted for lay audience or for Healthcare Audience
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INFLUENZA 2009INFLUENZA 2009 Seasonal FluSeasonal Flu A/Brisbane/59/2007 (H1N1)A/Brisbane/59/2007 (H1N1) A/Uruguay/716/2007 (H3N2)A/Uruguay/716/2007 (H3N2) B/Brisbane/60/2008B/Brisbane/60/2008
H1N1 “Swine” FluH1N1 “Swine” Flu Influenza A 2009 H1N1 Influenza A 2009 H1N1
A / Mexico / 001 / 2009 (H1N1) A / Mexico / 001 / 2009 (H1N1)
Jim Gervase, R.Ph.Jim Gervase, R.Ph. October, 2009October, 2009
Outline For TodayOutline For Today
What is Influenza ?What is Influenza ? Why is it important to us?Why is it important to us? History of InfluenzaHistory of Influenza 2009-2010 Seasonal Influenza2009-2010 Seasonal Influenza Influenza A 2009 H1N1 Influenza A 2009 H1N1
A / Mexico / 001 / 2009 (H1N1)A / Mexico / 001 / 2009 (H1N1)
VaccinesVaccines AntiviralsAntivirals
What is InfluenzaWhat is Influenza
VirusVirus UnpredictableUnpredictable Most strains evolve constantly (drift)Most strains evolve constantly (drift) Very ContagiousVery Contagious
What is InfluenzaWhat is Influenza
PATHOGENISISPATHOGENISIS Transmitted in Respiratory Transmitted in Respiratory
SecretionsSecretions Replicates in the Endothelium of the Replicates in the Endothelium of the
Respiratory TractRespiratory Tract Causes Cell DestructionCauses Cell Destruction Viral Shedding begins on contact and Viral Shedding begins on contact and
continues for 10 dayscontinues for 10 days
What is InfluenzaWhat is Influenza
CLINICAL FEATURESCLINICAL FEATURES Incubation Period 1 to 4 DaysIncubation Period 1 to 4 Days Severity of Illness depends on Prior Severity of Illness depends on Prior
Exposure to Same or Similar StrainExposure to Same or Similar Strain Onset of Symptoms is Abrupt: Onset of Symptoms is Abrupt:
Nonproductive Cough, Fever, Muscle Nonproductive Cough, Fever, Muscle Aches, Sore Throat, HeadacheAches, Sore Throat, Headache
What is InfluenzaWhat is Influenza
INFLUENZA VIRUS STRAINSINFLUENZA VIRUS STRAINS Type A Moderate to severe Type A Moderate to severe
symptomssymptoms All age groupsAll age groups Affects humans and animalsAffects humans and animals Type B Milder DiseaseType B Milder Disease Primarily Affects ChildrenPrimarily Affects Children Humans OnlyHumans Only Type C Rare reports in HumansType C Rare reports in Humans
What Is What Is NOTNOT Influenza? Influenza? Colds and other VirusesColds and other Viruses low fever or no fever, productive low fever or no fever, productive
cough, feel sick but ABLE cough, feel sick but ABLE to functionto function
Bronchitis / COPD / PneumoniaBronchitis / COPD / Pneumonia Smoking, predisposition, immune Smoking, predisposition, immune
compromisedcompromised GI “flu”GI “flu” Often caused by Bacteria due to Often caused by Bacteria due to
Food PoisoningFood Poisoning May be caused by other virusesMay be caused by other viruses
WHY IS FLU IMPORTANT TO WHY IS FLU IMPORTANT TO US ?US ?
We Feel We Feel AwfulAwful We Miss WorkWe Miss Work We Infect Our Loved OnesWe Infect Our Loved Ones We Infect the Community Around UsWe Infect the Community Around Us They Feel AwfulThey Feel Awful They Miss WorkThey Miss Work …………………………………………Some will be Some will be
HospitalizedHospitalized …….. ……………………..Some will Die.. ……………………..Some will Die
THE HISTORY OF INFLUENZATHE HISTORY OF INFLUENZA
First World Wide Pandemic was in First World Wide Pandemic was in 15801580
There were at least 4 pandemics in There were at least 4 pandemics in the 19the 19thth Century Century
Pandemic of 1918 Killed 21 Million Pandemic of 1918 Killed 21 Million PeoplePeople
2009-2010 Seasonal Influenza 2009-2010 Seasonal Influenza VaccineVaccine
A/Uruguay/716/2007 (H3N2)A/Uruguay/716/2007 (H3N2) B/Brisbane/60/2008B/Brisbane/60/2008 A/Brisbane/59/2007 (H1N1)A/Brisbane/59/2007 (H1N1)
Possible Mismatch of Vaccine to Circulating Possible Mismatch of Vaccine to Circulating VirusesViruses
197 Flu Viruses Circulating197 Flu Viruses Circulating New substrain has emerged A/Brisbane New substrain has emerged A/Brisbane
(H3N2) From A/Brisbane/10/2007 (H3N2) (H3N2) From A/Brisbane/10/2007 (H3N2) (drift)(drift)
2009-2010 Seasonal 2009-2010 Seasonal InfluenzaInfluenza
Is not being seen in the United States Is not being seen in the United States in large numbers in large numbers YETYET this year. this year.
90 to 95 % of all Type A Influenza is 90 to 95 % of all Type A Influenza is “Swine” Flu at this time.“Swine” Flu at this time.
October 1, 2009October 1, 2009
Influenza A 2009 H1N1 Influenza A 2009 H1N1 A / Mexico / 001 / 2009 (H1N1)A / Mexico / 001 / 2009 (H1N1)
(Swine Flu)(Swine Flu)
SymptomsSymptoms PrevalencePrevalence How to prevent it’s spreadHow to prevent it’s spread When do you call the Doc?When do you call the Doc? Family PreparednessFamily Preparedness
..
Influenza A 2009 H1N1 Influenza A 2009 H1N1 A / Mexico / 001 / 2009 (H1N1)A / Mexico / 001 / 2009 (H1N1)
SymptomsSymptoms
Influenza A 2009 H1N1 Influenza A 2009 H1N1 A / Mexico / 001 / 2009 (H1N1)A / Mexico / 001 / 2009 (H1N1)
PrevalencePrevalence
Pandemic influenza A/H1N1
08-09 seasonal influenza
2009-2010 Seasonal 2009-2010 Seasonal InfluenzaInfluenza
A/Brisbane/59/2007 (H1N1)A/Brisbane/59/2007 (H1N1) A/Uruguay/716/2007 (H3N2)A/Uruguay/716/2007 (H3N2) B/Brisbane/60/2008B/Brisbane/60/2008
Possible Mismatch of Vaccine to Circulating Possible Mismatch of Vaccine to Circulating Viruses Circulating in Early 2009Viruses Circulating in Early 2009
197 Flu Viruses Circulating197 Flu Viruses Circulating New substrain has emerged A/Brisbane New substrain has emerged A/Brisbane
(H3N2) From A/Brisbane/10/2007 (H3N2) (H3N2) From A/Brisbane/10/2007 (H3N2) (drift)(drift)
Influenza A 2009 H1N1 Influenza A 2009 H1N1 A / Mexico / 001 / 2009 (H1N1)A / Mexico / 001 / 2009 (H1N1)
PrevalencePrevalence
Influenza A 2009 H1N1 Influenza A 2009 H1N1 A / Mexico / 001 / 2009 (H1N1)A / Mexico / 001 / 2009 (H1N1)
Influenza A 2009 H1N1 Influenza A 2009 H1N1 A / Mexico / 001 / 2009 (H1N1)A / Mexico / 001 / 2009 (H1N1)
USE OF ANTIVIRALSUSE OF ANTIVIRALS
Tamiflu and Relenza only.Tamiflu and Relenza only. May decrease duration and severity of May decrease duration and severity of
illness.illness. Must be given within the first 24 – 48 hrs.Must be given within the first 24 – 48 hrs. Seasonal Influenza has shown some Seasonal Influenza has shown some
resistance to antivirals. Swine Flu has resistance to antivirals. Swine Flu has now demonstrated occasional resistance.now demonstrated occasional resistance.
Influenza A 2009 H1N1 Influenza A 2009 H1N1 A / Mexico / 001 / 2009 (H1N1)A / Mexico / 001 / 2009 (H1N1)
..
Influenza A 2009 H1N1 Influenza A 2009 H1N1 A / Mexico / 001 / 2009 (H1N1)A / Mexico / 001 / 2009 (H1N1)
..
Influenza A 2009 H1N1 Influenza A 2009 H1N1 A / Mexico / 001 / 2009 (H1N1)A / Mexico / 001 / 2009 (H1N1)
Influenza A 2009 H1N1 Influenza A 2009 H1N1 A / Mexico / 001 / 2009 (H1N1)A / Mexico / 001 / 2009 (H1N1)
..
Influenza A 2009 H1N1 Influenza A 2009 H1N1 A / Mexico / 001 / 2009 (H1N1)A / Mexico / 001 / 2009 (H1N1)
..
SHOULD I GET THE SWINE FLU SHOULD I GET THE SWINE FLU VACCINE ?VACCINE ?
(Non Healthcare Worker)(Non Healthcare Worker) 1. I SHOULD GET IT TO PROTECT MY 1. I SHOULD GET IT TO PROTECT MY
LOVED ONES.LOVED ONES. 2. I SHOULD GET IT SO THAT I CAN 2. I SHOULD GET IT SO THAT I CAN
TAKE CARE OF MY LOVED ONES IF TAKE CARE OF MY LOVED ONES IF THEY GET SICK.THEY GET SICK.
3. I SHOULD GET IT SO THAT I DON’T 3. I SHOULD GET IT SO THAT I DON’T MISS WORK.MISS WORK.
4. I SHOULD GET IT BECAUSE I AM AT 4. I SHOULD GET IT BECAUSE I AM AT HIGH RISK OF COMPLICATIONSHIGH RISK OF COMPLICATIONS
SHOULD I GET THE SWINE FLU SHOULD I GET THE SWINE FLU VACCINE ?VACCINE ?
( Healthcare Worker)( Healthcare Worker) 1. I SHOULD GET IT TO PROTECT MY LOVED 1. I SHOULD GET IT TO PROTECT MY LOVED
ONES.ONES. 2. I SHOULD GET IT SO THAT I CAN TAKE 2. I SHOULD GET IT SO THAT I CAN TAKE
CARE OF MY PATIENTS WHO HAVE IT.CARE OF MY PATIENTS WHO HAVE IT. 3. I SHOULD GET IT SO THAT I DON’T MISS 3. I SHOULD GET IT SO THAT I DON’T MISS
WORK.WORK. 4. I SHOULD GET IT SO THAT I DON’T CARRY 4. I SHOULD GET IT SO THAT I DON’T CARRY
IT HOME TO MY LOVED ONES.IT HOME TO MY LOVED ONES. 5. I SHOULD GET IT BECAUSE IT IS MY 5. I SHOULD GET IT BECAUSE IT IS MY
DUTY.DUTY.
SHOULD I GET THE SWINE FLU SHOULD I GET THE SWINE FLU VACCINE ?VACCINE ?
( Healthcare Worker)( Healthcare Worker)