As intriguing as this all is, I think it would be better to opt Fluttershy out of this. Choco's already undergone a Dark Digivolution (and died for it XD), she doesn't have a crest, and she's already pretty shaky in terms of confidence and self-esteem. Her personality has already been a little warped as it is, I don't think the virus can do much worse XD

I'd totally be okay with plotting with other people who do have characters affected by the virus, though X3