Hi Terry-
We've used the Alga Vet Hospital in La Costa for many years. They've had Basenji's as patients, and told us what we know, such as it is! It's hard to prove a negative, much less a suspicion. I did a lot of research, and it's possible something else might have snuck in…but I don't see it or have a guess. What I'm intrigued by is all the second guessing of this dog's lineage! We're just glad we saved her from a needle.
I can tell you this as an aside, having handled and trained some mean, roaring, sentry dogs in the Air Force...fifty years ago...this Nina of ours is the closest thing in terms of an aggressive, protective dog I've seen since! She's not friendly or sociable. Maybe someday...I think she came from some bad people, had never been on a leash, or lived in-doors, and certainly looked abused. She was starved for attention, and needing someone to care for her, and we're delighted she chose us.
As always, I appreciate any thoughts you have. Please stay in touch-
Al