FeLV and FIV are two different retroviruses that affect cats, usually tested for together with a single combination blood test. Neither is curable, but both are very different in practice — many FIV-positive cats live long, healthy lives with no special care, while FeLV is more serious and can shorten lifespan. The test is one of the cheapest things on this site. What it can mean for a cat's future — care, cost, and insurability — is not. Here's the realistic picture for Canadian cat owners.
What it costs in Canada
| Scenario | Typical cost (CAD) |
|---|---|
| Combination FeLV/FIV in-clinic test | ~$40–$90 |
| Confirmatory lab test (if in-clinic result is unclear) | ~$80–$150 |
| FeLV vaccine (for at-risk/outdoor cats) | ~$40–$80/dose |
| FeLV-positive — ongoing monitoring (bloodwork, exams) | ~$150–$400/visit, every 6–12 months |
| FeLV-positive — treating secondary illness as it arises | Varies — full cost of whatever condition develops |
| FIV-positive — monitoring only, most cats need no extra care | ~$150–$300/year (routine wellness visits) |
These figures are estimates for general guidance only, not quotes, compiled from publicly available veterinary pricing. The testing itself is inexpensive and often bundled into a routine or adoption exam. The real cost driver is what a positive result leads to over the cat's lifetime — for FeLV especially, an elevated risk of infections, cancers, and blood disorders that each carry their own treatment cost. See How we estimated these costs.
With insurance vs paying out of pocket
| Scenario | You pay | Insurer pays |
|---|---|---|
| Testing negative | $40–$90 for peace of mind and a clean record for insurance | N/A — routine screening |
| Testing FeLV/FIV-positive, then insuring | Full cost of all related future care — now pre-existing | $0 for anything connected to the diagnosis |
| Insured before testing, then testing positive | Deductible + co-insurance on covered related illness | Ongoing monitoring and related illness, up to limits (comprehensive policy) |
Two different viruses, two different outlooks
FeLV (feline leukemia virus) suppresses the immune system and raises the risk of certain cancers, blood disorders, and chronic infections — it's the more serious of the two, and FeLV-positive cats often have a shortened lifespan, though many still live good-quality lives for years with monitoring. FIV (feline immunodeficiency virus), sometimes called "feline HIV," is generally milder — many FIV-positive cats, especially if neutered and kept indoors, live a normal lifespan with no special treatment at all. Testing distinguishes the two, which matters enormously for what happens next.
Who should be tested
Vets typically recommend testing any new cat — adopted, stray, or a kitten from an unknown source — before introducing them to a household with other cats, since both viruses spread primarily through bite wounds (fighting) and, for FeLV, more casual contact like shared bowls or mutual grooming. Outdoor and multi-cat households carry the highest risk and benefit most from routine testing.
If the result is positive
Neither virus is curable, but neither is an automatic death sentence. FIV-positive cats generally just need routine wellness care and a low-stress, indoor lifestyle to avoid spreading it to other cats. FeLV-positive cats need closer monitoring — regular bloodwork and exams to catch secondary problems early — and should be kept separate from FeLV-negative cats. Either way, whatever illness eventually develops (an infection, a tumor, anemia) is billed and treated like any other condition, from cancer treatment to routine sick-cat visits.
Does testing cost vary by city?
Not much — this is a standard in-clinic blood test priced fairly consistently nationwide, often bundled into a new-cat or adoption exam. Where location matters more is downstream: if a FeLV-positive cat later needs specialist oncology or hematology care, that capacity concentrates in major metros the same way it does for any other condition on this site.
How insurance fits — test before you shop, not after
This is a case where the order of operations really matters. A cat that tests positive before a policy is purchased has that diagnosis — and anything that could plausibly connect to it — treated as pre-existing and excluded from any new comprehensive policy. A cat insured before testing (or that simply tests negative) keeps future FeLV/FIV-related care eligible for coverage under a comprehensive policy. If you're adopting a cat of unknown status, testing early and shopping for insurance immediately after a negative result — or before testing at all, if you're confident in the source — protects you either way.
How we estimated these costs
The dollar figures here are estimates for general guidance, not quotes, compiled from publicly available veterinary pricing. Real costs vary by clinic, province, and what (if anything) develops after a positive result — confirm with your own vet. Sources we drew on:
- FeLV/FIV test and program cost ranges: Essentials Pet Care — Feline leukemia test cost and Neighborhood Cats — FIV/FeLV testing.
- Related-condition context from our own cancer treatment and feline diabetes cost guides.
Considering insurance?
The test itself is cheap — $40–$90 — but a positive result reshapes a cat's whole insurance and care picture. Test early and insure before shopping gets complicated. Compare Canadian plans that cover illness diagnostics and ongoing monitoring.