A 2021 study by Saleh et al. utilized content and sentiment analyses of Twitter data to investigate public perceptions regarding COVID-19 vaccines. The research aimed to identify sentiments and emotional trends among different types of users.

Study on Public Perception of COVID-19 Vaccines through Analysis of Twitter Content and Users

- "Quantifying the rise of vaccine opposition on Twitter during the COVID-19 pandemic"
- "Public Perception of COVID-19 Vaccines through Analysis of Twitter Content and Users"
- "Covid-19 vaccine hesitancy on English-Language Twitter"

University of Michigan - Ann Arbor

Since the initial developmental stages of the COVID-19 vaccines, Twitter has been a platform where people discussed and shared their thoughts and information about the vaccines. Some examples include public announcements such as the content of the vaccine and regional distributions and user expressing their perceptions and sentiments towards the vaccine. 

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