Feline Infectious Peritonitis (FIP) is a disease that kills 1 in 100 to 1 in 300 of all cats under ages 3-5. The incidence can be five to 10 times greater among young cats coming from catteries and shelters. FIP is virtually 100% fatal, and there is no treatment or cure. FIP can manifest suddenly -- weeks, months or even years after initial infection. Therefore, cat lovers usually experience the heartbreak of this disease long after they have developed strong emotional bonds with their pets.

  • Abby

  • Rosie

  • Toby

  • Center for Companion Animal Health

  • Aziza

  • Coronavirus

    Coronavirus in cell cultures

  • Madison

  • Pierre

  • Redman

  • Tux

  • Rusty

  • Saffron

  • Dr. Niels C. Pedersen

  • Dr. Niels C. Pedersen

  • Dr. Pedersen and SOCK FIP Volunteers

  • Toby

  • Smiley

    His smile was his umbrella, but it didn't stop FIP.

  • Lucy


Save Our Cats and Kittens from Feline Infectious Peritonitis (SOCK FIP) is a volunteer organization dedicated to the elimination of FIP.  SOCK FIP members know by personal experience the impact of FIP on the lives of so many cat owners, breeders, and cat rescue and shelter groups in the US and abroad.  SOCK FIP has two major missions, the first being to educate people about FIP, its many diagnostic and therapeutic challenges, and ways to help prevent the disease.  Education requires knowledge and knowledge is obtained through research. Therefore, fundraising is a vital and integral component of the education mission of SOCK FIP.  The second and key mission of SOCK FIP is to use these funds to support FIP research.  Mirroring the original SOCK, which played a critical role in the conquest of feline leukemia virus infection, SOCK FIP has chosen to direct its efforts to a single institution. The School of Veterinary Medicine, University of California, Davis, through its Center for Companion Animal Health (CCAH)  has been a leader in FIP research since 1964. Although much has been learned from four decades of research, there still is not an effective means to prevent FIP and it remains largely incurable and fatal.  Virtually all funds for FIP research come from individual donations from people who have had personal experiences with the disease.  The government does not support FIP research.  Only YOU can help us SOCK IT TO FIP!

SOCK FIP has been granted non-profit status by the IRS.  All donations made to SOCK FIP are tax deductible and will support its fundraising, educational and research missions.  For more information about giving, please click here. Thank  you for visiting our website.  We will continue to add new articles, links and other features and we hope you will come back and visit the site again soon.  If you have questions about the site or suggestions for content, please contact us at This email address is being protected from spambots. You need JavaScript enabled to view it. .




YOU can make a difference – Help us SOCK IT TO FIP!



This sweet, loving little kitten, Lucy, was adopted at four months of age by the Sanchez family.The family adored her, but, tragically, Lucy died of FIP two months later.Claudia Sanchez, the artist, drew this portrait of Lucy as Lucy reached out with her tiny paw.The Board of Directors of SOCKFIP were so moved by Lucy’s story and Claudia’s rendering of her cat that we adopted Lucy as the cat in our logo.