We adopted Blu and his sister Abbie after having to put down Isabelle, our cat of 21 years. When they came home they got into all kinds of mischief, running and playing with each other at all hours of the day and night. Blu was a little shy, but once he warmed up he so playful and fun, and then one day he stopped playing and FIP took over. It was a steady decline and 5 days after the first of 3 vet visits, my husband came home from taking our daughter to school, Blu was non responsive. He I mmediately took him to the vet, the vet did draw abdominal fluid (she said it was FIP) and said due to the condition he was in, he needed to be put down. We are now keeping Abbie occupied, as I am sure she's sad also, and hoping she does get it. I have had cats all of my life and never heard of FIP until 5 days ago, it is HORRIBLE!! My Blu is a FIP warrior.