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Dr. Daniel Miller, MD, MPH
International Influenza Unit, Office of Global
Affairs
U.S. Department of Health and Human Services
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Why should I be vaccinated?
Will the vaccine potentially cause harm
or put me at risk?
Is the vaccine effective at preventing
influenza?
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Influenza is a serious disease that can lead to
hospitalization and sometimes death. Every flu season is different, and influenza infection can affect people differently.
3-5 million severe cases/year
300,000 – 500,000 deaths/year
An annual seasonal flu vaccine (either the flu shot
or the nasal-spray flu vaccine) is the best way to reduce the chances that you will get seasonal flu and lessen the chance that you will spread it to others.
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Characterized by ability to change Continually → yearly epidemics
Drastically → sporadic pandemics
This image has been released into the public domain by the copyright holder.
http://en.wikipedia.org/wiki/Influenza
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Annual vaccination required for optimal protection
• Antigenic changes in circulating strains
• Vaccine-induced antibodies wane over time
Influenza vaccines cause antibodies to develop in the
body about two weeks after vaccination.
Northern and Southern Hemisphere seasonal flu
vaccines protect against three influenza viruses that
international surveillance and research indicates
will be most common during the upcoming season.
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Can influenza vaccine give you flu?
Is it better to get the flu than face risks of
the vaccine?
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Common reactions to intradermal flu
vaccine:
• Soreness, redness or swelling at the spot where
the shot was given
• low grade fever and aches
Common reactions to nasal spray flu
vaccine
• Runny nose
• Nasal congestion, cough or headache
• Chills, Tiredness/weakness
• Sore throat
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What about serious reactions to flu
vaccine? • Allergic reaction
• Narcolepsy
• Autism?
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Can I get seasonal flu even though I got a flu
vaccine this year?
What about people who get a seasonal flu
vaccine and still get sick with flu-like
symptoms?
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Can vaccinating someone twice provide added
immunity?
Should I wait to get vaccinated so that my
immunity lasts through the end of the season?
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Influenza can severely impact heath, but
vaccines are safe and effective method to
prevent illness
Many common misconceptions about
influenza are circulating
Complex issue impacts clear
communication