Berlin C Virus

The Berlin C Virus, also referred to as the "Cult Flu", is a deadly and extremely contagious pathogen that overshadows the events of Season 4, Episode 11 of the 1990's verson of "The Outer Limits".

It is not clear where the epicenter of the virus originated from, although it's name may imply it's origin point, or where the first cases were reported. Throughout the episode, details of the virus are revealed through flashbacks of Doctor Marie Alexander, which reveal that the virus was genetically bio-engineered by a doomsday cult to fulfill a prophecy they had created about the coming millennium. It is likely that the virus was created in a laboratory setting, and once completed, followers of the cult traveled to major population centers around the world to release it (think of it like the movie "Inferno", only Tom Hanks wasn't there to save the day). The virus spreads uncontrollably from there, and wipes out almost all human life on earth within 3 months, likely giving it a 100% mortality rate.

Symptoms of the virus aren't specified, although obvious symptoms revealed in the episode include large, bulbous, ulcer-like growths on the face and hands, inflammation and skin lesions.

As revealed in the episode, an untested vaccine was developed to combat the virus, and is delivered to the hospital where Marie and twelve other patients are sheltered. However, there is only enough for three patients. Three patients in the hospital forcefully inject themselves with the vaccine, only to go into anaphylactic shock and die seconds later. It is revealed that the three patients were already exposed to the virus and were immune. It later turns out that the surviving nine patients are also immune to the virus, and are able to emerge from the hospital and face the new world ahead of them.