C-Virus (Resident Evil: Undead)

C-Virus is a variant of the Progenitor Virus and are responsible for mutations such as J'avo in ''Resident Evil: Undead. ''It was created by combining an enhanced version of the T-Veronica Virus and the G-Virus. Unlike the T-Virus, the C-Virus allows the infected to maintain some of it's intelligence, allowing the creatures that mutate from the virus to coordinate attacks and some even use weapons.