Theoretically Can blue whale get rabies

There mammals.

As I had thought to be the case, at least in mammals, the wording from this source seems to confirm that at least in theory they can...
"Any warm-blooded animal (including humans) may become infected with the rabies virus and develop symptoms...Most animals can be infected by the virus and can transmit the disease to humans"
http://en.wikipedia.org/wiki/Rabies#Tran…

No