Feline Leukemia virus, or FeLV, affects 2-3% of all cats in the United States, making it one of the more common diseases for cats. Feline Leukemia is passed from one infectious cat to another, and infection rates are higher for cats that struggle with a weakened immune system. FeLV can be spread through saliva, mucus, urine, feces, and milk of cats that carry the disease. It is important to be aware of and know the facts of Feline Leukemia


Cats usually do not show any symptoms of FeLV in the early stages. Symptoms are shown as the disease progresses, and can include:

- Significant and progressive weight loss

- Fever

- Persistent diarrhea

- Loss of appetite

- Decline in coat condition

- Reproductive failures

- Seizures

- Skin, bladder, or intestine infections

FeLV progresses differently in every cat, and can range from a quick progression within weeks, to a slow progression over many years. When symptoms do begin to show, contact your veterinarian right away.


The best way to protect your cat from exposure to FeLV is by preventing them from interacting with any cat that carries the disease. Keeping your cat indoors and away from other cats is the best way to prevent the spread of this disease. If your cat is an outdoor cat or has outdoor access, supervise them as best as possible. If you are bringing a new cat into your home, have them tested for FeLV before interacting with your other cats. There is also a FeLV vaccine that is available for your cat. This vaccine only decreases the chances of your cat being infected and does not prevent it completely.  

The health of your cat is incredibly important. One way that you can help to protect your cat’s health is by being aware and learning of diseases that can harm them. If you have any questions about Feline Leukemia or any other disease, please do not hesitate to contact us!



Photo by Septimiu Lupea: https://www.pexels.com/photo/tabby-kitten-sitting-on-the-grass-669015