If you've spent any time looking at cats available for adoption at a rescue or shelter, you've probably seen those two letters next to a cat's name. FIV positive. Maybe you kept scrolling. Most people do.

Here's what those two letters actually mean, because it's almost certainly not what you think.

What FIV is

FIV stands for Feline Immunodeficiency Virus. It's a virus that weakens a cat's immune system over time, making them potentially more vulnerable to infections that a healthy cat would fight off easily. It's in the same family of viruses as HIV in humans, which is where most of the fear comes from.

But here's the first thing to understand. FIV is species-specific. You cannot get HIV from your cat, and your cat cannot get FIV from you. This is not a public health concern. It is a cat-specific virus and it stays that way.

Around three to five percent of cats in North America test positive for FIV. That's a lot of cats. Most of them are living completely normal lives.

What FIV is not

It's not a death sentence. It's not a reason to euthanize a healthy cat. It's not a reason to pass a cat by at a shelter.

Studies conducted in 2010 and 2022 found that an FIV diagnosis wasn't associated with decreased lifespans. In fact, cats can remain asymptomatic for years or even their entire lives.

Let that sink in. An FIV positive cat can live their entire life without ever showing a single symptom. They can reach the same age as any other indoor cat. They can be healthy, playful, affectionate, and completely unaffected by the diagnosis on their paperwork.

Cornell University's College of Veterinary Medicine confirms that recent studies suggest cats with FIV commonly live average life spans, as long as they are not also infected with feline leukemia virus.

How it spreads and how it doesn't

This is the part that matters most for anyone considering adopting an FIV positive cat into a home with other cats.

The virus spreads only through sex and deep bite wounds. Consistent casual contact such as grooming, sharing food bowls, and communal living is not a viable means of transmission.

Read that again. Sharing a food bowl. Grooming each other. Sleeping in the same spot. None of these things transmit FIV.

The risk comes from serious bite wounds, the kind that happen in aggressive fights between cats who don't get along. If your cats are spayed and neutered and living peacefully together, the risk of transmission is extremely low. If your cats fight seriously enough to inflict deep wounds on each other, that's a problem regardless of FIV.

FIV positive cats should be kept indoors, fed a balanced nutritionally complete diet, and see a vet twice per year. That's the management plan. It's not complicated and it's not expensive.

Why so many FIV cats are still in shelters

Because people keep scrolling.

The two letters on the profile. The association with HIV. The vague fear of something poorly understood. It adds up to a cat who waits much longer than they should, in a kennel, while other cats go home.

The irony is that FIV positive cats are often among the most rewarding to adopt. They tend to be older cats with established personalities. They're calm. They're grateful. They've been passed over enough times to appreciate a person who stopped and didn't move on.

There's a cat somewhere in a rescue near you right now with FIV positive next to their name. They're healthy. They're affectionate. They're waiting for someone to read past those three letters and see the cat behind them.

Go back and look again

If you're considering adopting and you've been automatically skipping the FIV cats, go back and look again. Go to thesecondpaw.org and find a rescue organization near you. Ask them about their FIV positive cats. Ask to meet one.

You might be surprised by what you find.

Second chances start here.