Feline plague should be kept at least half a year before raising a second cat. Because cat plague has a long survival time and is highly contagious, the environment needs to be thoroughly disinfected. It is best to disinfect with ultraviolet light for more than three times. Things that have been used by cats before are not allowed. Use it on the second cat. The second cat should be vaccinated before taking it home. This can reduce the chance of the cat being infected with feline distemper.