Social Media + Society, 8 (4), 2022: The coronavirus disease 2019 (COVID-19) pandemic was an unexpected event and resulted in catastrophic consequences with long-lasting behavioral effects. People began to seek explanations for different aspects of COVID-19 and resorted to conspiracy narratives. The objective of this article is to analyze the changes on the discussion of different COVID-19 conspiracy theories throughout the pandemic on Twitter.

ABSTRACT: While biological warfare has classically been considered a threat requiring the presence of a distinct biological agent, we argue that in light of the rise of state-sponsored online disinformation campaigns, we are approaching a fifth phase of biowarfare with a ‘‘cyber-bio’’ framing.