Because aggression by beavers is pretty uncommon and because the consequences are so serious, I'm sure the first thing doctors did at the hospital was to begin treatment for rabies. Any warm-blooded mammal, including a beaver, can be a carrier of rabies. Because rabies is almost inevitably fatal if untreated, precautionary treatment would be the protocol.
So now you can get rabies from beaver? I thought all you could get was the usual STD’S?