Feline Leukemia Vaccine Cost

Feline leukemia is one of the most common infectious diseases of cats in the world. The disease is caused by the Feline Leukemia Virus (FeLV). The virus has a profound effect on the immune system, the bone marrow and blood cells of the cat, and there are up to six stages of infection: infected cats can be asymptomatic carriers for many years, but the clinical signs and the long term prognosis is variable, depending on a number of factors. Clinical signs may include weight loss, gingivitis (inflamed gums), stomatitis (inflammation of the lining of the oral cavity), and a range of other possibilities. While some cats can live a healthy life, with a normal lifespan, other cats can have a mortality rate of around 50% in 2 years and 80% in 3 years.


The FeLV vaccination protects cats from the feline leukemia virus. Feline leukemia is usually spread by a carrier cat coming into contact with an unprotected cat. Bites, or even mutual grooming, can spread the virus.  Sometimes, mother cats can pass the virus on to their kittens, which is why we recommend FeLV/FIV testing at your regular vet whenever you get a new cat.

There are no obvious signs of infection in early stages. Anywhere from a month to a year after first being infected, the infected cat’s health starts declining. Symptoms include having less appetite, losing weight, not grooming as frequently, and sleeping more.

Features of Feline Leukemia Vaccine

The FeLV vaccination protects cats against the symptoms of feline leukemia virus. It was first created and placed on the market in 1985. This vaccine has been approved by the United States Department of Agriculture (USDA). Pet parents can go to any veterinary clinic in the country and request the FeLV vaccine. This vaccination is not known to be required by any level of law in the US.

Benefits of Feline Leukemia Vaccine

After vaccination, a cat’s immune system creates a memory for a specific virus—both by producing cells that fight the disease and by producing immunoglobulins, important proteins that find the virus, stick to it, and signal the body to destroy it.  If a cat is not vaccinated against a particular virus, his immune system will require days to weeks to mount an effective immune response when he is exposed to it. If, however, a cat IS vaccinated against a particular virus, his immune system will kick in within minutes to hours after exposure

Some studies have shown that the FeLV vaccine may prevent symptoms (signs) of FeLV disease, but not necessarily infection. Testing of cats exposed to FeLV after vaccination shows the presence of proviral DNA of FeLV in the body. This is not an active infection, and the virus should not replicate or infect the cat. However, it is possible that in future years FeLV could begin to replicate (or grow) and cause FeLV disease. 

Prices of Feline Leukemia Vaccine

$29.99 – $37.00

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