Scaling up the discovery of hesitancy profiles by identifying the framing of beliefs towards vaccine confidence in Twitter discourse.

VACCINATION; CONFIDENCE; ETHICS; COVID-19 vaccines; ATTITUDE (Psychology); SOCIAL media; NATURAL language processing; HEALTH literacy; VACCINE hesitancy; HEALTH attitudes; HUMAN papillomavirus vaccines; DRUG labeling; MISINFORMATION; PHARMACEUTICAL industry; COVID-19 pandemic; TRUST

Our study focused on the discovery of how vaccine hesitancy is framed in Twitter discourse, allowing us to recognize at-scale all tweets that evoke any of the hesitancy framings as well as the stance of the tweet authors towards the frame. By categorizing the hesitancy framings that propagate misinformation, address issues of trust in vaccines, or highlight moral issues or civil rights, we were able to empirically recognize their ontological commitments. Ontological commitments of vaccine hesitancy framings couples with the stance of tweet authors allowed us to identify hesitancy profiles for two most controversial yet effective and underutilized vaccines for which there remains substantial reluctance among the public: the Human Papillomavirus and the COVID-19 vaccines. The discovered hesitancy profiles inform public health messaging approaches to effectively reach Twitter users with promise to shift or bolster vaccine attitudes. [ABSTRACT FROM AUTHOR]

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