As a cat owner, it’s important to stay up to date on health conditions and illnesses that could potentially affect your cat. For instance, the Feline Leukemia Virus (FeLV) can affect cats of all breeds including the British Longhair. Although there is no cure for FeLV, there are ways to prevent it as well as identify it at an early and treatable stage. FeLV is the second largest cause of death in cats. It is a virus that can cause anemia and lymphoma. It is spread through saliva, blood, and bodily fluids. It is not contagious to other animals. The disease can also weaken the immune system causing the cat to become susceptible to other deadly infections. The best prevention for FeLV is to keep your cats indoors, vaccinate them, and have them checked for FeLV on a routine basis. Read the complete topic at the given link. http://firthvet.com