[Name] Hyper-evolutionary virus [Source] StarCraft [Symptoms] 
The Hyper-evolutionary virus is a retrovirus produced by Zerg Queens. It is used to mutate "lesser" creatures into zerg warrior breeds. Only a small percent of humanity is fully compatible, who retain personality, intelligence, and psionics. Others mutate into living bombs, utterly dominated by the Overmind. It has a re-animation side-effect. It is transmissible through fluid transfer only, much like Solanum.