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Cats
Chronic
Often not insured

FeLV & FIV in Cats
Treatment Costs UK 2026

Feline Leukaemia Virus (FeLV) and Feline Immunodeficiency Virus (FIV) are lifelong retroviral infections spread through bites, grooming, or in utero. FeLV suppresses the immune system and can cause cancer. FIV is similar to HIV and gradually weakens immunity. There is no cure for either virus.

Diagnosis £50–£200
Monthly £30–£180
Annual Cost £500–£2,600
Lifetime Cost £1,500–£9,000
Cost breakdown

What You'll Pay

Estimated costs for diagnosing, treating, and managing FeLV & FIV in Cats in the UK. Prices vary by vet practice, location, and severity.

Diagnosis

Initial tests and consultation

Low £50
Average £100
High £200

Initial Treatment

First-line treatment or surgery

Low £100
Average £250
High £500

Monthly Ongoing

Medication, monitoring, management

Low £30
Average £80
High £180

Annual Cost

Total estimated cost per year

Low £500
Average £1,200
High £2,600

Lifetime Cost

Total estimated cost over pet's life

Low £1,500
Average £4,000
High £9,000

Prices are estimates based on UK averages and may vary by region, practice, and individual case. Updated March 2026.

Warning signs

Symptoms to Watch For

If your pet shows any of these symptoms, consult your vet promptly. Early diagnosis can reduce treatment costs and improve outcomes.

Recurrent infections

Weight loss

Enlarged lymph nodes

Poor coat condition

Fever

Pale gums (anaemia)

Treatment plan

What Treatment Includes

A typical treatment plan for FeLV & FIV in Cats includes these components. Your vet will tailor the approach to your pet's specific needs.

1

SNAP FeLV/FIV blood test

2

Confirmatory PCR or IFA test

3

Supportive care for secondary infections

4

Interferon-omega therapy

5

FeLV vaccination (prevention)

6

Indoor-only lifestyle to prevent transmission

Breeds at risk

Commonly Affected Breeds

These breeds are more predisposed to FeLV & FIV in Cats. If you own one of these breeds, consider discussing screening with your vet.

Any breed (outdoor/unneutered cats at highest risk)
Domestic Shorthair
Domestic Longhair
Bengal
Siamese

Insurance May Not Cover This

FeLV & FIV in Cats is often not covered by standard pet insurance policies. Consider setting up a dedicated pet savings fund to cover these costs. With annual costs of £500–£2,600, saving £100 per month could help you prepare.

Check insurance options

Compare Vets Near You

Treatment costs vary significantly between vet practices. Enter your postcode to compare local vets and find the best value for your pet's care.