Dr. Cameron was an Umbrella USA researcher working in Raccoon City. She was infected with the t-Virus during the 1998 Raccoon City Destruction Incident and, in an effort to cure herself, caused a violent mutation which gave her the ability to implant her memories and personality onto other organisms. A U.B.C.S. team was sent to her laboratory to rescue her and her research, unaware of her infection. Dr. Cameron made it her goal to kill the U.B.C.S. team and prevent Umbrella recovering the data. A rat and bird gained Cameron's personality, and ultimately the Monitor, Roger, who killed the only other U.B.C.S. member, Claus.