Dealing with FeLV (Feline Leukaemia Virus) in Cats

Cats can be seriously affected by the feline leukaemia virus (FeLV), a disease that compromises their immune system and can lead to cancer. This comprehensive guide will help you understand FeLV, its signs, causes, diagnosis, treatment options and prevention methods to promote responsible cat ownership and care.

Recognising the Signs of FeLV Infection

FeLV exists in three forms, each affecting cats differently:

• FeLV-A: Weakens the immune system significantly.
• FeLV-B: Leads to tumours and abnormal cellular growth in many cases.
• FeLV-C: The rarest form; causes severe anaemia.

Cats may carry one or multiple types. Watch for symptoms such as:

• Anaemia
• Lethargy
• Weight loss
• Abscesses
• Enlarged lymph nodes
• Chronic diarrhoea
• Poor skin and coat quality
• Recurring infections, especially on ears
• Fever
• Unsteady or uncoordinated movement
• Inflammation around eyes, nose, and gums
• Lymphoma or fibrosarcoma (forms of cancer triggered mainly by FeLV-B)

How Cats Contract FeLV

FeLV spreads through close contact with infected cats. Common transmission routes include:

• Bites during fights or play
• Mutual grooming
• Sharing food and water bowls
• Using the same litter trays

Moreover, infected mother cats can pass the virus to their kittens through milk, making young cats especially vulnerable. Keeping young kittens and adult cats protected is crucial.

Diagnosing FeLV

If FeLV is suspected, a vet will first exclude other illnesses like bacterial, fungal, parasitic infections, or cancer. Confirmatory tests include:

• Blood tests to detect FeLV antigens
• Complete blood count to check for anaemia
• Urinalysis
• Bone marrow biopsy or aspiration (if necessary)

Early diagnosis enables better management and quality of life for your cat.

Treatment and Care for FeLV-Positive Cats

There is no cure for FeLV; treatment focuses on managing symptoms and preventing secondary infections:

• Medications to control infections and manage symptoms like fever or poor appetite
• Hospitalisation for severe cases needing blood transfusions or intravenous feeding
• Supportive care including fluids, vitamins, minerals, and special diets
• Regular dental care to prevent oral infections

Yearly vaccinations are recommended to protect uninfected cats, but cats should be tested first to ensure they are FeLV-negative.
Veterinary guidance is vital for personalised treatment plans that promote comfort and longevity.

Living with a FeLV Diagnosis

Cats carrying FeLV require continuous monitoring and care. Many develop secondary illnesses from the weakened immune system and may live between 2 to 3 years post-diagnosis. By providing supportive care and preventing additional infections, you can maximise your cat’s quality of life and maintain comfort.

Preventing FeLV

The best way to prevent FeLV is to keep your cat indoors and ensure a nutritious, balanced diet. Limit contact with potentially infected cats and maintain regular vet check-ups for early detection of secondary infections. Vaccination against FeLV is an essential preventive tool, but only for cats that test negative.
Responsible ownership involves regular health checks, vaccination, and maintaining safe environments to protect your feline friend.