Various cultures interpret visual rhetoric differently; therefore, technical communicators must adjust their rhetoric accordingly by creating effective visual rhetoric for their international and multicultural audiences. Although there is a great deal of research in the field regarding how to create effective visual rhetorical rhetoric, this research often fails to take into international and multicultural audiences into consideration. Many visual rhetoric solutions proposed in technical communication involve 'catch all' approaches that do little to communicate to people of non-Western cultures and can even serve to offend or confuse international and multicultural audiences. These solutions are generated by a globalization mindset, but are not realistic when we acknowledge how varied technical communication audiences are with regard to culture. The globalization approach also fails unless technical communicators intend to limit the reach of their communication to certain types of Western audiences. To create the most useful visual rhetoric, technical communicators must learn to use color, graphics, icons/symbols, and layouts (web and print) appropriately for audiences. They must learn more about different types of cultures (individualistic or collectivistic, universalist or particularist, high-context or low-context, high uncertainty avoidance or low uncertainty avoidance, monochronic or polychronic, linear thinking or systemic thinking, masculine or feminine), and they must address these different cultural expectations accordingly.

The goal of this thesis is to explore the various forms of rhetoric utilized in digital communities pertaining to COVID-19. The body of this thesis synthesizes social media data with original human subjects research, supplemented by a review of the literature surrounding digital communication. The analysis of these freestanding communities highlights the differences in communication throughout these spaces, as well as discusses their differences in reaction to disordered information. Through rhetorical analysis of the language employed by COVID-19 denialist communities on Twitter and a review of the experiences of COVID-19 “long-haulers” in COVID-19 related online communities (such as Facebook and Reddit), this project offers novel insights into COVID-19 communication and the spread of misinformation.

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