Will Falconer, DVM Moderator
I've heard of this a couple of times now, Fern, and have to guess the animal in question had close contact with a recently rabies vaccinated animal who was shedding virus. It's very interesting to me, and hard to understand with what is commonly understood about rabies virus transmission. It's not aerosol or fecal, it's in saliva, and usually moves by biting.
Diet is sure a great help in immunity, though I suspect there's a fair amount of latitude here.
Thanks for sharing this story.