When a cat suffers from feline distemper, it will not eat or drink, will have diarrhea and vomiting repeatedly, will have no strength, be dehydrated, and have difficulty breathing before dying, and will die within 6 hours. Feline distemper is a highly contagious disease that mostly occurs in spring and autumn and has a high mortality rate. It is recommended that breeders promptly seek medical attention if their cats show signs of feline distemper. They can also vaccinate their cats every year to prevent feline distemper.