The easiest way to prevent feline leukemia is to have your pet vaccinated against the virus. There are several different vaccinations available today. Your veterinarian can help you decide which preventative treatment is best suited to your animal. It's just as important to protect your cat as it is to give him the shot. IF your cat is an outdoor cat, it's safest to allow him only to roam in your backyard, where you're certain other cats do not travel.
Veterinarians often recommend using a leash to keep cats safe.
DON'T allow other cats to share your cat's water or food dishes, litter box or toys. IF you live in a home that has been exposed to feline leukemia, it's best to begin a disinfection process immediately. Though the virus can live outside its environment for only a short time, if you own other cats, you'll want to begin cleanup. Toss all litter boxes and food dishes immediately. Do not allow your healthy cat back into the living area until his shots have been made current and two days have passed.