It is a contagious virus infection of cats transmitted by direct contact with infected cats and is one of the leading disease in cats and is not responsive to antibiotic and most of the times is fatal. It effects in a variety of ways like diarrhea, abdominal swelling, heavy or difficulty in breathing, recurring fever, weight loss, loss of balance or co-ordination and eyes problems. Kittens and older cats tend to be more susceptible especially in multiple-cat household and that are outdoors and especially the purebreds. A new FIP vaccine was introduced in 1991. It is administered in two doses intra nasally, and it offers the best protection available against FIP.
Although FIP used to be more prevalent years ago, occasional cases of this viral infection are seen.