Even today the term "Raleigh collie" has a special ring for dog fanciers, many of whom have forgotten its original derivation. These likable, companionable, and disquietingly intelligent pets were soon transported all over the nation by eager buyers and breeders. Once it had made the jump from human host to canine, Berenbaum’s transcriptase derivative, like the AIDS virus itself, was passed on through the canine maternal womb. It was also transmitted through canine sexual intercourse and, via saliva, through biting and licking.