Cats that die from feline distemper are very painful. Feline distemper is a viral disease. When a cat is infected, it will have symptoms such as vomiting, diarrhea, high fever, and lack of energy. As the condition worsens, the cat's body will gradually lose weight. , the spirit will gradually decline, and the virus will continue to torture until death. Furthermore, after feline plague enters the body, it will cause other diseases in cats, such as enteritis, dehydration, etc.