Talk:Story and History/@comment-46.138.65.248-20130815191100/@comment-15504212-20130815195036

Two places say so. The first is the final line in the game Dark Sector, "That was how it started, the irony of this disease. That in all the others, it made evil; but for  him [Hayden], it had saved his soul."

The other place is from Steve the head dev during livestream 11, " When Earth got totally screwed over and the Orokin started using using DNA to rebuild different animals that suited them, some of that stuff went wrong..."

The game Dark Sector also has enemies called 'Moles' which are some form of dog or rodent that has been mutated by the Technocyte virus, indicating it is capable of infecting non-human creatures.