Cited by 530Vaccine Coverage and HesitancyMisinformation and Its ImpactsSentiment Analysis and Opinion Mining

Assessing Vaccination Sentiments with Online Social Media: Implications for Infectious Disease Dynamics and Control

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Salathé, Marcel, Khandelwal, Shashank·2011·PLoS Computational Biology

Abstract

There is great interest in the dynamics of health behaviors in social networks and how they affect collective public health outcomes, but measuring population health behaviors over time and space requires substantial resources. Here, we use publicly available data from 101,853 users of online social media collected over a time period of almost six months to measure the spatio-temporal sentiment towards a new vaccine. We validated our approach by identifying a strong correlation between sentiments expressed online and CDC-estimated vaccination rates by region. Analysis of the network of opinionated users showed that information flows more often between users who share the same sentiments - and less often between users who do not share the same sentiments - than expected by chance alone. We also found that most communities are dominated by either positive or negative sentiments towards the novel vaccine. Simulations of infectious disease transmission show that if clusters of negative vaccine sentiments lead to clusters of unprotected individuals, the likelihood of disease outbreaks is greatly increased. Online social media provide unprecedented access to data allowing for inexpensive and efficient tools to identify target areas for intervention efforts and to evaluate their effectiveness.

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  • Social media use may contribute to an 'echo-chamber' effect, where users perceive their values and world-views to be more common than they actually are, due to selectively viewing contributions of other, similarly minded people.

    “Previous work around similar disorders suggests that social media use may contribute to an ‘echo-chamber’ effect, where users perceive their values and world-views to be more common than they actually are, due to selectively viewing contributions of other, similarly minded people [5].”

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Authors
Salathé, M., & Khandelwal, S.
Affiliations
Pennsylvania State University (US)
Corresponding author
Salathé, Marcel
Venue
PLoS Computational Biology
Published
2011-10-13
Volume
7
Issue
10
Pages
e1002199
ISSN
  • 1553-734X (ISSN-L)
  • 1553-7358
OpenAlex
W2025330985
Cited by
530
References
29
Citations by year
2026: 5 · 2025: 19 · 2024: 27 · 2023: 30 · 2022: 41 · 2021: 52 · 2020: 53 · 2019: 43 · 2018: 34 · 2017: 44 · 2016: 56 · 2015: 50 · 2014: 35 · 2013: 30 · 2012: 11
FWCI
24.97
Type
journal article
Language
en
Open access
Locations
  • PLoS Computational Biology (publishedVersion, cc-by)
  • Europe PMC (PubMed Central) (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • arXiv (Cornell University) (submittedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
  • Infoscience (Ecole Polytechnique Fédérale de Lausanne) (submittedVersion)
  • Infoscience (Ecole Polytechnique Fédérale de Lausanne) (submittedVersion, cc-by-nc-nd)
  • arXiv (Cornell University)
Topics
  • Social Sciences › Health › Vaccine Coverage and Hesitancy
  • Social Sciences › Sociology and Political Science › Misinformation and Its Impacts
  • Physical Sciences › Computer Science › Artificial Intelligence › Sentiment Analysis and Opinion Mining
Keywords
vaccine attitudes, social media, vaccination coverage, infectious disease transmission, outbreak, information flow
MeSH terms
Attitude to Health, Centers for Disease Control and Prevention, U.S., Disease Outbreaks, Humans, Immunization, United States, Social Media

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