Table of contents
Key Takeaways
- Feline leukemia is a viral disease that can cause blood cancers and has no cure, making prevention through vaccination essential.
- Our vets often recommend the feline leukemia vaccine even for kittens expected to live indoors, since circumstances can change and early vaccination is the simplest path to protection.
- Cats with outdoor access or regular contact with other cats are at the highest risk and most strongly benefit from vaccination.
Feline leukemia virus is one of the more serious diseases cats can face. It's contagious, it's incurable, and once a cat is infected they carry the virus for life. Vaccination is the most reliable way to prevent it, and the earlier it happens, the better.
What Is Feline Leukemia?
Feline leukemia virus, or FeLV, is transmitted from cat to cat through close contact including mutual grooming, shared food and water bowls, and extended social interaction. It can cause blood cancers and progressively weakens a cat's immune system, leaving them vulnerable to secondary illnesses over time.
Because there is no cure, a cat that contracts feline leukemia lives with the disease permanently. That's what makes vaccination so valuable — it's the one tool that can prevent infection before exposure happens.
Does My Cat Need the Feline Leukemia Vaccine?
Our vets often recommend the feline leukemia vaccine even for kittens that are expected to live indoors. The reasoning is simple: circumstances change. A cat that is indoor-only today may have outdoor access in the future, or a new pet may be introduced to the household. Vaccinating early, when a cat is young and healthy, is a much simpler path than trying to catch up later.
For cats that go outside or have regular contact with other cats, vaccination is strongly recommended. The risk of exposure is real, and the consequences of infection are serious enough that prevention is always the better option.
What Is the Vaccination Schedule?
The feline leukemia vaccine is typically given as part of a kitten's initial vaccination series. After that, your vet will recommend whether annual boosters make sense based on your cat's lifestyle and ongoing exposure risk. Cats with outdoor access or contact with other cats are more likely to benefit from continued yearly vaccination.
Your vet will walk you through what's right for your cat at their wellness visit.
What Should My Cat's Status Be Before Vaccination?
Before starting the feline leukemia vaccine, your vet will typically recommend testing your cat for FeLV and FIV first. Vaccinating a cat that is already infected with feline leukemia won't provide protection, and knowing your cat's status before starting the series is an important part of getting the most out of the vaccine.
How Do I Access My Cat's Vaccination Record?
Your cat's feline leukemia vaccination record is stored in the Modern Animal app alongside their complete health history. You can download and share it anytime with boarding facilities, groomers, or anyone else that requires proof of current vaccination.
How Do I Access My Cat's Vaccination Record?
Your cat's feline leukemia vaccination record is stored in the Modern Animal app alongside their complete health history. You can download and share it anytime with boarding facilities, groomers, or anyone else that requires proof of current vaccination.
Protect Your Cat Before Exposure Happens
Feline leukemia is one of those diseases where prevention is everything. If your cat hasn't been vaccinated yet or you're not sure whether they're current, book an appointment through the Modern Animal app. And if questions come up before then, our team is available anytime through 24/7 Virtual Care.
