The Feline Leukemia Virus and Your Cat's Symptoms

The feline leukemia virus (FeLV) is a highly dangerous and usually deadly virus that affects the immune system of your cat. Unfortunately, there is no known treatment that is consistently effective against this disease.

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.

Initial symptoms may include fever, blood disease, swollen lymph nodes, and general malaise. Some cats will experience no symptoms during the beginning stages of the disease.

Some FeLV infected cats may exhibit excessive urination and thirst, which is also common to a number of other conditions. They often will develop anemia, and some will develop tumors, leukemia, and other forms of cancer.

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 to this disease. Upon initial infection, some cats will fight off the illness and it will not progress to the second stage. Other cats will not be so fortunate and the disease will progress.

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

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.