"...She... came back to life after you died. Apparently she needed to be in stasis for many years for the virus to work properly," Wesker continued on the subject about Alexia and her virus. "I wanted to get a sample after she died, so I raided her facilities. She infected Burnside so I took his body after he was killed, to observe in case he came back to life as well."

"Krauser has a virus, and a parasite that was discovered in spain recently," Wesker never had been fully able to recreate the virus that William had given him in it's pure state.