Summary on Section 8: Epidemiological Considerations in the Management of Cats Following a Diagnosis of FIP  It is likely safe to take a cat that has been diagnosed with FIP back into a household with cats that have already been in contact with it, as these cats are likely to be already FCoV-infected following exposure to the same FCoV isolate that originally infected the FIP cat. In the cat that has developed FIP, the infecting FCoV has likely undergone mutations to result in FIP-associated FCoV infection, and the understanding is that the horizontal transmission of FIP, via an FIP-associated FCoV strain, is a very unlikely occurrence.  In households where a cat with FIP has been euthanised, with no remaining cats in the household, it is recommended that the owner waits for two months before obtaining new cats, as it has been suggested that FCoV might preserve its infectivity for days to a few weeks.  Cats with FIP in a veterinary practice should be handled and housed like other cats, with routine infection-control measures, as any cat is a potential source of FCoV infection. There is no need to keep cats with FIP in infectious disease isolation wards.