[Name] C-Virus [Source] Resident Evil 6 [Symptoms] 
A new, further evolved version of the T-Virus. Developed by Neo-Umbrella, it is responsible for creating the highly evolved, more intelligent J'avo, as well as being used in the worldwide bio-terrorist attacks. Jake Muller, being descended from Albert Wesker, is resistant to the disease. Because of this, Jake is seemingly being hunted by Ada Wong and her agents.[4]