FeLV/FIV test for cats for early detection of dangerous viruses

Have you noticed signs of lethargy, weight loss, or recurring infections in your cat?She could be infected with one of the most serious contagious viruses in cats: Feline Leukemia Virus (FeLV) or Feline Immunodeficiency Virus (FIV).In this article from Daleely Medical, we provide you with a complete guide to the FeLV/FIV test—when it should be done, how to interpret the results, and essential tips to protect your cat from the complications of these life-threatening viruses.

What Is the FeLV/FIV Test?

The FeLV/FIV test is a simple blood test used to detect:

• FeLV (Feline Leukemia Virus):
  A virus that weakens the immune system, causes anemia, and can lead to leukemia and other cancers.

• FIV (Feline Immunodeficiency Virus):
  Also known as “feline AIDS,” it gradually suppresses the immune system, making the cat vulnerable to infections.

 Both viruses are not transmissible to humans, but they are highly dangerous to cats—especially if left undiagnosed.

 When Should You Test Your Cat for FeLV/FIV?

Your vet may recommend the FeLV/FIV test in the following situations:

• When adopting a new cat, especially from the streets or a shelter

• Before introducing a new cat to a household with existing cats

• If your cat is showing symptoms such as:

  • Sudden weight loss

  • Chronic lethargy

  • Repeated skin or respiratory infections

  • Enlarged lymph nodes

  • Anemia

  • Poor appetite

• Before starting routine vaccinations

• If you suspect your cat was bitten by another cat

 How Is the Test Performed?

• A small blood sample is drawn from your cat.

• The SNAP test (rapid ELISA test) is commonly used and gives results in 10–15 minutes.

• If the result is positive, the vet may recommend a confirmatory test such as PCR or ELISA.

 Is the Test 100% Accurate?

✅ SNAP Test:

• High sensitivity and accuracy (90–98%).

• May give false negatives if performed shortly after exposure.

✅ Confirmatory Tests:

• PCR detects the virus itself, not just antibodies.

• Useful for confirming diagnosis, especially if the result is unclear or unexpected.

 What’s the Difference Between FeLV and FIV?

 How to Interpret the Test Results

 Is There a Cure for FeLV or FIV?

There is no definitive cure, but:

• Infected cats can live long, happy lives with proper care

• Treatment focuses on immune-boosting supplements, managing secondary infections, and a healthy diet

• Infected cats should not mix with healthy cats to prevent spread

✅ Prevention Tips for FeLV/FIV

• Test new cats before bringing them into your home

• Keep cats indoors to prevent fights and bites

• Vaccinate against FeLV (no effective vaccine exists for FIV)

• Spay/neuter to reduce roaming and aggression

• Schedule regular vet visits to monitor immune health

 Frequently Asked Questions (FAQ)

❓ Can these viruses infect humans or dogs?

No. FeLV and FIV are specific to cats only and are not contagious to humans or other animals.

❓ Can an infected cat live a normal life?

Yes. Many FIV or FeLV-positive cats live for years with proper vet care, a safe environment, and good nutrition.

❓ Should I euthanize my infected cat?

Absolutely not. A positive result is not a death sentence. With love and medical care, infected cats can still thrive.

 Conclusion

The FeLV/FIV test is a quick and simple procedure—but it can save your cat’s life.
Early diagnosis, proper isolation, and ongoing veterinary care are key to managing these serious feline viruses.

 Don’t wait. If you're adopting a cat or noticing unusual symptoms, ask your vet about the FeLV/FIV test.
Your cat’s health is in your hands. ❤️