virallyadverb
uk/ˈvaɪə.rəl.i//ˈvaɪ.rəl.i/virally adverb (DISEASE)
in a way that is caused by a virus:
virally infected cells
virally adverb (INTERNET)
used to describe the way in which something quickly becomes very popular or well known by being published on the internet or sent from person to person by email, phone, etc.:
The video grabbed people’s attention and it spread virally around the world.