I'm so very sorry to hear that. I got a three month old puppy from the shelter (in order to find a great home for her, which I did) that got kennel cough while in there and they had her in a cat cage rather than the dog kennels. With so many animals going in and out of places like that, they will be lucky if they "don't" catch something. I hope you don't beat yourself up over this. You did not know. Warm hugs to you.