- Star Trek: The Motion Picture
- Star Trek II: The Wrath of Khan
- Star Trek III: The Search for Spock
- Star Trek IV: The Voyage Home
- Star Trek V: The Final Frontier
- Star Trek VI: The Undiscovered Country
- Star Trek Generations
A rapidly advancing, adaptive and highly resistant disease which has decimated the Vidiian population by consuming bodies, destroying genetic codes and cellular structures faster than the race's medical science can keep up. Thousands die each day, and the only cure is to replace organs — usually by harvesting from living victims.