Information Zone

The feline leukemia virus (FeLV) has no known cure, and it has not been clinically proven that any antiviral or other agent will extend the life of an infected cat. This disease affects the immune system of cats, and is often fatal.

This disease has a varied list of symptoms and signs, many of which may be common to other illnesses and conditions. FeLV is a retrovirus, which means that it is able to insert copies of its own genetic material into the cells it has infected.

Healthy cats, like healthy people, are attacked by organisms all the time. Most of the time, both felines and humans can fight them off. When your cat’s immune system is compromised, however, opportunistic infections and parasitic organisms are more likely to thrive and cause damage.

Secondary infections and diseases will cause problems with FeLV infected cats. These secondary infections and diseases make the symptom list for this illness quite varied. FeLV infected cats have a difficult time fighting off invaders, even common bacteria.

Some cats will experience no outward symptoms during the initial stages of the disease. Early FeLV symptoms may include general malaise, blood conditions, fever, and swollen lymph nodes.

FeLV infected cats are susceptible to developing leukemia as well as other forms of cancer. They often will develop anemia as well, and about 30 percent of infected cats will develop tumors. Some cats may exhibit excessive thirst and urination, which is also common to feline diabetes and other conditions.

As the disease progresses, sick cats may present with more and varied symptoms. Blood in the stool, constipation, jaundice, and recurring infections may be present. Feline leukemia virus symptoms may also include and diarrhea, severe weight loss, and depression.

There are two stages of feline leukemia virus. It’s possible that an infected cat may halt the progression of the disease at the first stage, but others are not so lucky.

If your cat has FeLV, the only thing you can do is to treat the secondary infections and diseases, and try to boost the immune system of your cat. This disease is usually fatal for those cats who reach the second stage of this disease.

In fact, it’s estimated that only about 2 to 3 percent of all cats are infected with FeLV. Infection rates are higher in high risk groups. The disease is transmitted through direct contact with an infected cat. Keeping your cat indoors and away from infected cats is a good precaution. Fortunately, if your cat is not in a high risk group, chances are limited that she will contract the disease.