Dr. Niels Pedersen, Distinguished Professor Emeritus of the School of Veterinary Medicine, University of California-Davis, discusses the current prospects for preventing and treating feline infectious peritonitis in cats. FIP has remained a major problem of cats for over five decades. We now understand where and how the virus that causes FIP mutates from the ubiquitous and otherwise innocuous feline coronavirus (FECV). However, we are only just beginning to untangle the complex virus, host and environmental factors that have the most effect on FIP incidence and how this knowledge can be applied to both disease prevention and cure. Following Dr. Pedersen's outstanding presentation, Dr. Vicki Thayer, executive director of Winn Feline Foundation, will introduce Winn's future Cures4CatsDay for October 21, 2017. Questions and answers by Dr. Pedersen will follow that short presentation.