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. 2022 Oct-Dec;28(4):14604582221135831.
doi: 10.1177/14604582221135831.

A comparative analysis of anti-vax discourse on twitter before and after COVID-19 onset

Tareq Nasralah  1 , Ahmed Elnoshokaty  2 , Omar El-Gayar  3 , Mohammad Al-Ramahi  4 , Abdullah Wahbeh  5
Affiliations

A comparative analysis of anti-vax discourse on twitter before and after COVID-19 onset

Tareq Nasralah et al. Health Informatics J. 2022 Oct-Dec.

Abstract

This study aimed to identify and assess the prevalence of vaccine-hesitancy-related topics on Twitter in the periods before and after the Coronavirus Disease 2019 (COVID-19) outbreak. Using a search query, 272,780 tweets associated with anti-vaccine topics and posted between 1 January 2011, and 15 January 2021, were collected. The tweets were classified into a list of 11 topics and analyzed for trends during the periods before and after the onset of COVID-19. Since the beginning of COVID-19, the percentage of anti-vaccine tweets has increased for two topics, "government and politics" and "conspiracy theories," and decreased for "developmental disabilities." Compared to tweets regarding flu and measles, mumps, and rubella vaccines, those concerning COVID-19 vaccines showed larger percentages for the topics of conspiracy theories and alternative treatments, and a lower percentage for developmental disabilities. The results support existing anti-vaccine literature and the assertion that anti-vaccine sentiments are an important public-health issue.

Keywords: COVID-19; analytics; anti-vaxxers; social media; vaccines.

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Conflict of interest statement

The author(s) declared no potential conflicts of interest with respect to the research, authorship, and/or publication of this article.

Figures

Figure 1.
Figure 1.
Research methodology.
Figure 2.
Figure 2.
Optimal number of topics based on coherence score.
Figure 3.
Figure 3.
Topic visualization and analysis through PyLDAVis using t-distributed stochastic neighbor embedding.
Figure 4.
Figure 4.
Volume of tweets across topics between 1st January 2011, and 15th January 2021.
Figure 5.
Figure 5.
Percentages of tweets for each topic before/after 1st February 2020.
Figure 6.
Figure 6.
Percentages of tweets regarding flu, MMR, and COVID-19 vaccines between 1st January 2011 and 15th January 2021, across different topics. MMR: Measles, mumps, and rubella.
See this image and copyright information in PMC

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