Related Clues:
- Like some YouTube videos
- Like some modern marketing
- Like some infections
- Spreading fast on YouTube
- Like ailments that can be remedied
- Fast-spreading
- Spreading fast online
- Like some online videos
- Like megapopular web videos
- The sort of infection that's revolting inside for a rival
- How some YouTube videos go
- How popular videos ''go''
- Fast-spreading, on the Web
- Like a popular YouTube video
- Of organisms causing 'flu, etc