Tel. (650) 445-4500
images/header9.jpg

Blog

Our latest news

Feline Leukemia: Protecting Your Cat's Health

As cat owners, we want nothing more than to see our feline companions live long lives. Yet sometimes, despite our best efforts, our cats can face serious health challenges that require our immediate attention and understanding. Feline Leukemia (FeLV) is one such condition that every cat owner should be aware of. 4Paws Mobile Veterinary Services wants to be sure that all felines in the Hillsborough area have the chance to be protected against FeLV.

What is Feline Leukemia?

Feline Leukemia is an infection caused by the feline leukemia virus. This disease can cause blood disorders and significantly compromise the immune system, making cats vulnerable to various secondary infections and diseases. Feline Leukemia is also the leading cause of feline cancers. FeLV is transmitted primarily through direct contact with infected cats, typically through saliva during grooming, sharing food and water bowls, or through bite wounds during fights. The virus can also be transmitted from a mother to her kittens. Once the feline leukemia virus enters a cat's system, it can take weeks, months, or even years for symptoms to appear. 

Recognizing the Symptoms of FeLV

The symptoms of Feline Leukemia can vary widely and often mimic those of other common feline illnesses, making early detection challenging. Pet owners should watch for these warning signs:

  • Loss of appetite and gradual weight loss
  • Recurring respiratory infections or upper respiratory symptoms
  • Recurring urinary or bladder infections
  • Persistent diarrhea or digestive issues
  • Enlarged lymph nodes
  • Pale gums
  • Unusual behavioral changes
  • Issues with coat health

Because these symptoms can indicate various health conditions, a professional veterinary evaluation is the only way to reach a proper diagnosis. A veterinarian can run a blood test to determine if your cat has been exposed to the virus. FeLV testing is recommended annually for most cats.

Which Cats Are Most at Risk for Feline Leukemia?

Outdoor cats who have contact with infected felines face the highest risk, as they're more likely to encounter FeLV-positive cats through fighting, mating, or social grooming. Kittens and young cats under three years old are particularly vulnerable because their immune systems are still developing. Multi-cat households where one cat is FeLV-positive create significant risk for other cats, especially if they share food, water, and litter boxes.

Unvaccinated cats of any age remain susceptible to infection, while cats with compromised immune systems due to stress, poor nutrition, or other illnesses face increased vulnerability. 

FeLV Prevention Through Vaccination

The most effective way to protect your cat from Feline Leukemia is through vaccination. The FeLV vaccine is highly effective and is considered a core vaccine for cats at risk of exposure. The initial vaccination series typically begins when kittens are around 8 weeks old, with boosters given according to your veterinarian's recommendations.

Before vaccination, your veterinarian will likely recommend testing your cat for FeLV to ensure they're not already infected. Vaccinating an already infected cat won't harm them, but it also won't provide any benefit. The vaccine is most effective when given to cats before they're exposed to the virus.

Annual boosters are typically recommended for cats that continue to have potential exposure to FeLV, while indoor-only cats may follow a different vaccination schedule based on their individual risk assessment.

In-Home FeLV Vaccines for Cats in Hillsborough, CA

Feline Leukemia remains a serious concern for cat owners, but it's largely preventable through vaccination and responsible pet ownership practices. Understanding the risks, recognizing symptoms, and taking proactive steps to protect your cat can make all the difference in their long-term health. 4Paws Mobile Veterinary Services brings in-home cat vaccine services to felines in Hillsborough, Redwood City, Palo Alto, and neighboring areas. Schedule an appointment for your feline pet.

Heartworm Disease: What to Expect After a Positive...

By accepting you will be accessing a service provided by a third-party external to https://4paws.vet/

logoBottom.png
4Paws Mobile Veterinary Services is a mobile veterinary team performing house calls for cats and dogs in Hillsborough, Redwood City, Palo Alto, and the surrounding areas.
(650) 445-4500       info@4paws.vet
logo-medvet.jpg
81dbb502-725f-4957-b72f-05f44262eb05-1.png
logobot1.jpg
logobot2.jpg
logobot3.jpg
logobot4.jpg
Portola Valley Photo by: Dan Quinn
Reply STOP to unsubscribe from SMS messages. Messaging and data rates may apply. Privacy Policy.
© 2025 4Paws Mobile Veterinary Services | Veterinary Marketing & Websites by Vetcelerator.