Feline immunodeficiency virus (FIV) in cats
FIV is a slow virus spread mainly through deep bite wounds. Many FIV-positive cats live normal lifespans.
Last updated: October 2026 · 2 sources · see sources
Signs to watch for
- Often none for years
- Gum inflammation
- Recurring infections
- Weight loss
Trouble breathing, collapse, repeated vomiting, not peeing, or a seizure that lasts more than a few minutes needs a vet right away. See when to see a vet.
How vets diagnose it
An in-clinic blood test screens for FIV antibodies. [2]
How it's treated
There's no cure. Care includes routine checkups, dental care and prompt treatment of infections. [2]
What it costs to diagnose and manage
| Item | Typical US price | Src |
|---|---|---|
| Diagnosis (exam and tests) | $50–$100 | [1] |
These are typical US ranges from the sources listed. Your pet's costs depend on how severe things are, the tests your vet recommends, your pet's size and where you live. Ask your vet for a written estimate.
Outlook
Many FIV cats live long, healthy lives indoors. [2]
Common questions
What is feline immunodeficiency virus (FIV) in cats?
FIV is a slow virus spread mainly through deep bite wounds. Many FIV-positive cats live normal lifespans.
What are the signs of feline immunodeficiency virus (FIV)?
Common signs include: often none for years, gum inflammation, recurring infections, weight loss.
How do vets diagnose feline immunodeficiency virus (FIV)?
An in-clinic blood test screens for FIV antibodies.
How is feline immunodeficiency virus (FIV) treated?
There's no cure. Care includes routine checkups, dental care and prompt treatment of infections.
How much does feline immunodeficiency virus (FIV) cost to treat?
Diagnosis (exam and tests): $50–$100. Costs vary with severity, tests, your pet's size and where you live.
Related
This page is general information for pet owners, not veterinary advice. Talk to your vet about your own pet.