posted on 2025-08-08, 15:22authored byHarrison Brown
Since the onset of the COVID-19 pandemic, general public opinion in the United States has shown a decrease in trust towards public health organizations and public health campaigns. Using social media as a lens for public opinion, this paper highlights the spatial distribution of the most widespread discussion topics among Twitter users regarding COVID-19, vaccinations, mask mandates, social distancing, quarantines, and shelter-in-place procedures. Using Topic Modeling, this study examined more than 5 million Tweets from January 1, 2020, to January 1, 2022.This study performs Topic Modeling, using Latent Dirichlet Allocation (LDA) as an intermediate step in analyzing the spatial distribution of topics across geographic scales. Analyzing the Twitter data provided 8 latent topics, from COVID-19 misinformation to vaccine requirements at school. Through Twitter geolocation information, each topic shows a unique spatial distribution across the contiguous United States. Analyzing and interpreting the prevalence of these topics allows policymakers to better understand sentiments regarding COVID-19 and related public health campaigns at the community and state level.