Transcript
The G-Virus
William Birkin, father of Sherry Birkin, is responsible for the discovery of and research on the G-Virus, a virus with incredible regenerative and reproductive abilities. The G-Virus causes the host to lose rational thought, turning it into a violent creature that seeks to replicate the virus as an embryo in a person with blood ties to the original host.
During the Raccoon City Incident, an armed group sought to steal the G-Virus, and killed William Birkin in the process. Before his death, however, Birkin injected himself with the virus, thus consummating his life's work. Revived by the virus, Birkin sought out his nearest blood relative, his daughter Sherry, and injected her with an embryo for the G-Virus. Claire Redfield created an antidote to stop the embryo from mutating Sherry's body, but even after the expulsion of the embryo, trace amounts of the G-Virus remained in her body.
The result of the government's tests on her is that she has incredible regenerative abilities, including immunity to most viruses. Her youthful appearance is thought to be due to the G-Virus as well.
