FeLV – Feline Leukaemia Virus

Besides FIP and FIV, FeLV is another fatal virus disease of cats. It is often called cat leukaemia because leukaemia is one of the common symptoms of the disease. How can your cat get infected, how can you recognize and treat it?

This disease belongs to three fatal cat diseases – FIP (feline infectious peritonitis), FIV (the so-called cat AIDS) and FeLV (feline virus leukaemia). I have already introduced you to the first two diseases, now it’s time to look at cat leukaemia.

It is a retrovirus infection which often occurs together with FIV. It has similar symptoms but besides gradual degradation of immune system, it is also manifested by anaemia and an increase in tumour incidence and mainly by leukaemia. A long incubation period is characteristic for this disease and it may even take up to several years.

A cat might get infected with FeLV by bites or licking from another cat but also indirectly, for example by food contaminated with saliva. Cats most often fell ill between 2 and 4 years of age. The severity of the disease is then influenced by the age, health condition of the cat and the amount of virus it was exposed to.

The virus attacks the lymphoid tissue and bone marrow after being in contact with a cat and it can stay there permanently. Many infected cats can withstand the primary infection, recover and they become carriers of the virus or they become immune against FeLV and the virus gets fully eliminated from the body.

Similarly to FIV, the primary symptoms are not specific. The whole immune system is weakened and it is not able to fully function and the cat is more prone to common diseases. Common problems are diarrhoea, fever, swollen lymph nodes, eye and nose discharge. However, these are the symptoms of many other diseases. Typical symptoms for FeLV are an increase in tumour incidence, mainly lymphoma and leukaemia.

The treatment is similarly to FIP and FIV only supportive, to suppress the symptoms and prolong the life. Also, the tumours caused by FeLV react worse to chemotherapy. However, many positive cats might live long years without any symptoms. But when the immune system is attacked and tumours start to occur, the end is coming.

The infected cat might be diagnosed with a blood test, i.e. finding the viral antigen in blood. As some cats are able to fight cat leukaemia and get rid of the virus, it is recommended to repeat the test after a few months. If you are afraid of FeLV and your cats is at risk of infection (for example the cat lives outdoors), you can have them vaccinated. However, it needs to be provably uninfected, for the infected cats, the burden to the immune system could even cause the full disease outbreak.

Breeding stations test all their kittens can keep their breeding “clean”. Therefore, if you get a pure-bred cat, you don’t have to worry that it would have FeLV in its blood. However, if you have another cat at home, you should have it tested before the arrival of a new member.

 

Related articles

Fasting once a week: Truth or myth?

Allegedly, fast is instinctively practised by both wolfs and wild dogs. This has led many people to that assumption, that our dog on the couch should, once in a while, be fasting as well. A wild animal surely knows what it is doing, nature is wise, you...

Dog History II: Hachiko

In this cycle, we will get to know interesting dog personalities. Dogs play an important role in our life, so let us take a look what they have already achieved during our life together. We should find Hachiko in the dictionary next to the phrase...

When is excessive movement harmful for your dog

Have you ever wondered how much movement is healthy for your dog and when it can be harmful? Or that not every movement is beneficial? Most dog owners never think about this. It’s said that the more you move, the better. But this is not always true.

My experience with humane trapping

As I mentioned in previous articles, I occasionally help out my friend Markéta, who runs a cat shelter. I had the opportunity to take part in several humane trappings for stray cats and would like to share the experience with you today. 

Dog depression

Did you know that even your pet dog can suffer from depression? As with people, we shouldn’t underestimate the mental state of our dogs. How to recognize it and what to do about it?

Dogs and cats in the world I: Greece

In this cycle, we shall take a look at how cats and dogs are getting along in the world. Where people nurture and spoil them, or on the contrary they suffer and their situation is critical. Today I would like to introduce you to the cats of Greece,...

Overheating your dog

The approach of warm sunny days will surely entice many people to go for long walks. Many of us take our four-legged companions on vacation. It’s during these times that we should be careful about sunstroke, both for us and our dogs. How can we prevent...

What to do if your dog is overweight

Just like with people, being overweight can have a negative impact on a dog’s health. Preparing the right diet and amount of food to give them can sometimes be, however, like pure alchemy, and so your dog can start to become obese. If this is the case...

How to protect your dog from ticks

There seems to be more and more ticks year after year. Fortunately, the ways to protect our furry friends, whether dogs or cats, against these parasites are growing. Everyone can choose what product fits best for them and their four-legged companions.

Skinny guinea pig or hairless guinea pig

Until recently skinny guinea pigs were relatively rare in our country. Word about them is quickly spreading, however, and they have become a sudden hit among breeders. What’s it like having these guinea pigs and what do they like to eat?

Feline kidneys need good nutrition

The kidneys perform one of the most important functions in the body - cleaning the blood. Due to their small intake of water, cats are more burdened than other animals and therefore suffer quite often from kidney problems the older they get.