Top Definition
A virus that does not actually exist, but is a possible mutation of an existing virus, or an entirely made up virus that can possibly exist without defying medical knowledge. Examples of fictional virus include Lyssavirus X and Filonecrosis. The movie entitled "Outbreak" was a good example of a fictional virus.
Despite the fact that they don't exist, it's important to be prepared for fictional viruses, since viruses are known to mutate to more potent forms all the time.
by Edward Stevens August 25, 2006
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