- 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
An inifectant of the U.S.S. Voyager's bio-neural gelpacks, finally traced to the Brill cheese Neelix had cultivated from splicht. The virus is finally killed with a ship-wide "fever" from a high-energy plasma burst from a symmetric warp field.