no clue…she's a rescue adopted @ 3 months old.
the very night i brought her home she started coughing. long story short - she had a nasty case of distemper with the vet telling me she had <30% chance of survival. i literally willed her to live, spoon feeding her chicken and rice for 3 months. she coughed for over a year even after she was well, and she was nicknamed "the incredible coughing dog". 5 years later, she's fit as a fiddle!
funny thing happened to her - for the first 2 years, she never barked (typical basenji). a friend with a border collie started staying with me and Rosie would bark at all the dogs/people walking past the house. Lo & behold, Greta B 'learned' to bark! now i can't shut her up!