The ability to spread viruses and diseases through bites.
The user's teeth and/or saliva contain infectious diseases and viruses which they can spread to others with a bite.
- Some targets may be immune.
- Zombies (Various)
- Them (Highschool of the Dead)
- Werewolves (Various)
- Fenrir Greyback (Harry Potter)
- Remus Lupin (Harry Potter)
- Will Blake (Goosebumps)
- Vampires (Various)
- Cross-Species (The Amazing Spider-Man 2012 video game)
- Lumpy-Space People (Adventure Time)
- Blackwing Virus Infected (Star Wars)
- Arystar Krory III (D.Gray-Man)
- Eve (Supernatural)
- Yuki Nagato (Haruhi Suzumiya)
- Galberos (Ultraman series)