Hi all just an update...Dusty has fully recovered! Long process but her count is back to normal and she is great. The only problem is she has put on 3 kilos and is now quite overweight... the vet said apparently she can get in back ..but I am more aware now of symptoms. I am lucky i had pet insurance or it would have really cost me big time approx 2500.00 plus tablets. The vet said she was very lucky and early treatment saved her.