Viral means "relating to viruses" (small infectious agents). Viral may also refer to: Viral behavior, or virality Memetic behavior likened that of a virus, for example: Viral marketing, the use of existing social networks to spread a marketing message Viral phenomenon, relating to contagion theory or the "virality" of network culture, such as a meme Viral video, a video that quickly attains a high popularityTitled works Viral (2016 American film), a 2016 American science fiction horror drama Viral (2016 Hindi film), an Indian Bollywood film based on social media Viral (web series), a 2014 Brazilian comedy web series V/H/S: Viral, an American anthology horror film Viral: The Search for the Origin of COVID-19, a book by Alina Chand and Matt RidleySee also Virals, a novel series by Kathy Reichs Virulence, pathogen's ability to...