Pet Health

Feline Calicivirus (FCV) In Cats

Learn about Feline Calicivirus (FCV) in cats, including symptoms, prevention, and treatment options. Keep your furry friend healthy and happy!
Author: Veterinary Team
Dial A Vet
Updated
June 6, 2025
|
Published
June 6, 2025
Healthy cat sitting next to a veterinarian examining a sick cat showing symptoms of Feline Calicivirus.

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Has your cat been sneezing more than usual or acting under the weather? You might be dealing with feline calicivirus (FCV), a common but potentially serious viral infection in cats. Whether you're a seasoned pet parent or new to feline care, understanding FCV can help you protect your furry friend and know when to seek professional help.

⚠️ What to Watch For

Feline calicivirus primarily affects a cat's respiratory system, but it can also cause issues in other parts of the body. Recognizing the symptoms early is crucial for effective care. Here are the common signs of FCV:

  • Frequent sneezing
  • Runny nose or nasal discharge
  • Watery or red eyes
  • Ulcers in the mouth, especially on the tongue or gums
  • Excessive drooling
  • Loss of appetite
  • Lethargy or low energy
  • Fever

In severe cases, FCV can lead to pneumonia or joint pain, causing limping or stiffness. Some strains of the virus can even cause a rare condition called virulent systemic feline calicivirus (VS-FCV), which is life-threatening and requires urgent veterinary attention.

🔍 Possible Causes

Feline calicivirus is highly contagious and spreads easily among cats, especially in multi-cat households, shelters, or boarding facilities. The virus is transmitted through:

  • Direct contact with an infected cat
  • Sharing food and water bowls
  • Exposure to contaminated bedding, litter boxes, or toys
  • Contact with respiratory droplets from sneezing or coughing

Cats of all ages can contract FCV, but kittens, unvaccinated cats, and those with weakened immune systems are at higher risk.

✅ What You Can Do at Home

If you suspect your cat has FCV, there are steps you can take at home to provide comfort and prevent the virus from spreading:

  • Keep your cat isolated from other pets to reduce the risk of transmission.
  • Ensure they have a quiet, stress-free space to rest and recover.
  • Encourage hydration by offering fresh water or low-sodium chicken broth.
  • Feed soft, palatable foods if mouth ulcers make eating difficult.
  • Use a humidifier or bring your cat into a steamy bathroom to ease congestion.

While these measures can help manage mild cases, FCV often requires veterinary care for proper diagnosis and treatment.

💡 When to Call a Vet

While some cats recover from FCV on their own, it’s essential to consult a veterinarian if:

  • Your cat stops eating or drinking for more than 24 hours.
  • They have difficulty breathing or are wheezing.
  • You notice worsening symptoms, such as severe lethargy or high fever.
  • Your cat is limping or showing signs of joint pain.
  • There are other cats in the household, as they may need vaccination or preventive care.

Early intervention can prevent complications and speed up recovery. Your vet may recommend supportive care, antibiotics for secondary infections, or antiviral medications in severe cases.

FAQs

Q: Is feline calicivirus contagious to humans?
A: No, FCV is specific to cats and does not spread to humans. However, it is highly contagious among cats, so precautions are necessary if you have multiple pets.

Q: Can feline calicivirus be prevented?
A: Vaccination is the best way to protect your cat from FCV. While the vaccine doesn't provide complete immunity, it significantly reduces the severity of symptoms if your cat is exposed.

Q: How long does it take for a cat to recover from FCV?
A: Recovery times vary, but most cats start to feel better within 1–2 weeks. Severe cases or complications may take longer and require additional veterinary care.

Book a $49 online vet consultation at https://www.dialavet.com for fast, expert advice.

References

While every effort is made to ensure the accuracy of this content - including vet review where applicable - this article is for informational purposes only and is not a substitute for professional veterinary advice, diagnosis, or treatment. If your pet is unwell or you are concerned, please speak with a licensed veterinarian. You can book a $49 online consultation with our veterinary team  😄
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