@Lady Mila I am very sorry for your loss *hugs* do you happen to know where your baby contracted the cat flu? Seeing as how you had her for only a day and she already showed signs of not being herself I would think she contracted it from the breeders home.(incubation period for the flu virus)
. Have you contacted the breeder since she's been sick? Did you have a contract? The other pups in this breeders care may have been exposed to the same virus so if there is a clause in your contract that says she'll "replace" the pup I'd be a bit apprehensive right now. Breeders like this make me thank GOD for Rasta's breeder everyday. My prayers for you in your time of sorrow