The Vaccine Confidence Project - WHO
Transcript of The Vaccine Confidence Project - WHO
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The Vaccine Confidence Project
Session: Understanding the context
Elisabeth Eckersberger and Heidi J Larson
11th June 2013
Workshop on Enhancing Communication around Influenza Vaccination
Improving health worldwide
www.lshtm.ac.uk
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Report of the Independent Monitoring Board of the Global Polio Eradication Initiative November 2012
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And then H1N1...
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The Vaccine Confidence Project
Premise
Early detection of and timely response to vaccine concerns can prevent loss of public confidence in immunization, program disruptions, and potential
disease outbreaks.
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TWO KEY LESSONS
1. Communication cannot fix a problem
you do not understand
2. Not all problems are related to (or can be solved by) communication
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Reports Globally, May 2010 – May 2012
25,549 reports in database
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Vaccine reports about the USA by Disease May 2010 - May 2012
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1200
1400
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Vaccine confidence issues vary considerably
The following slides show an analysis by The Vaccine Confidence Project of 10,380 media and social media reports collected globally between May 2011-May 2012
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Positive media Negative media
Larson et al. “Measuring Vaccine Confidence: A new media surveillance tool and typology to analyze public concerns about vaccines” Lancet Infectious Diseases (In Press) 2013
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POSITIVE REPORTS
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Larson et al. “Measuring Vaccine Confidence: A new media surveillance tool and typology to analyze public concerns about vaccines” Lancet Infectious Diseases (In Press) 2013
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NEGATIVE REPORTS
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Larson et al. “Measuring Vaccine Confidence: A new media surveillance tool and typology to analyze public concerns about vaccines” Lancet Infectious Diseases (In Press) 2013
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Discussion
•Monitoring of media/social media (fast data) can provide valuable signals of emerging vaccine confidence issues •No single report or event provokes a breakdown in confidence —usually requires multiple and spreading concerns and “fertile” ground • The same negative events/concerns can have very different outcomes in different settings •Impacts of waning confidence (vaccine hesitancy) can take months or years to manifest in vaccine refusals and consequent VPD outbreaks.
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RESPONSES
SUSTAINING & AMPLIFYING
FACTORS
NEGATIVE IMPACTS
PROMPTERS
Mar/Apr 2003
May 2003
July 2003
Aug 2003
Oct 2003
Jan 2004
Feb 2004
July 2004
1974 & 1988
Historic
1996
On-going
Purposeful Spreading
Vaccine suspended
Stakeholder engagement
POSITIVE IMPACTS
PUBLIC CONCERN
CONTEXT
Marginalised Populations
Historic Policy/ Recommendation
Historic event of distrust
High profile individuals and groups spreading concern
Vaccine refusals
Disease outbreaks
Vaccine reinstated
Research
International pressure
Change in policy
High profile
individual action
Response (inadequate engagement)
Conflict/ War
Analysis of public concern around the OPV boycott in Nigeria
Fertility/ Sterility
Deliberate tampering
Political Motives
Risk /Benefit
Political Motives
Mass Campaign
Research
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