Cat Flu - What Every Cat Owner Needs to Know: Symptoms, Prevention, and Treatment Tips
- LuLu's Cattery
- May 28
- 4 min read

As a dedicated cat owner, your pet's health is likely one of your top priorities. One serious health issue that deserves your attention is Cat Flu. This viral infection can affect cats of all ages, and recognizing its symptoms is essential for their overall well-being. In this article, you'll learn what Cat Flu is, how to identify its symptoms, effective treatment methods, prevention tips, and care strategies to keep your feline friend thriving.
What is Cat Flu?
Cat Flu, also known as Feline Viral Rhinotracheitis (FVR), is primarily caused by two viruses: feline herpesvirus and feline calicivirus. Similar to how the common cold spreads among humans, Cat Flu can quickly infect cats, particularly in crowded settings like shelters or multi-cat homes. Outdoor cats are more susceptible, however indoor cats can also contract the virus through contact with infected items, or by something as simple as saying hello to an outdoor cat through a fly-screen door.
The viral infection leads to inflammation of the upper respiratory tract, which can cause discomfort and serious health problems for your cat. In severe cases, untreated Cat Flu can result in pneumonia or secondary bacterial infections. Being aware of these risks is crucial for any cat owner.

Symptoms of Cat Flu
Identifying the symptoms of Cat Flu early can help ensure your pet receives prompt and effective treatment. Some common signs to look for include:
Sneezing and Nasal Discharge: Your cat may experience frequent sneezing or a runny nose. The discharge can start clear and may become yellowish if a secondary infection occurs.
Watery Eyes: You might notice tears on your cat’s face. This can happen if their eyes are irritated due to congestion.
Coughing: Frequent coughing may indicate difficulty in breathing due to nasal congestion.
Lethargy: A previously lively cat may become sluggish and show less interest in regular activities.
Loss of Appetite: If your cat isn’t eating for more than a day, it is a cause for concern. In fact, studies show that a loss of appetite lasting more than 24 hours can increase the risk of severe health problems.
If you notice any of these symptoms, consult your veterinarian as soon as possible for proper diagnosis and treatment.
How to Treat Cat Flu
Treatment largely depends on the severity of the infection. Most cases are mild and can be managed at home. We would ALWAYS suggest a Vet visit, as the virus can progress quickly and cause additional problems for your cat. Here are some steps you can take:
Provide Supportive Care: Keep your cat comfortable and hydrated. Create a warm, quiet area where they can rest and relax.
Nutritional Support: Tempt your cat to eat by offering wet food or warming up their meals to make them more appealing. Cats with a healthy diet are better equipped to fight off infections.
Medication: Your veterinarian may recommend antiviral medications, antibiotics for secondary bacterial infections, or anti-inflammatory drugs. Results vary; studies show that antiviral treatments can reduce the duration of symptoms by around 30 percent.
Use Humidifiers: Adding a humidifier to your cat’s space can help ease nasal congestion, making breathing more comfortable.
In severe cases, your veterinarian may suggest additional treatments, so closely monitoring your cat's symptoms is vital.

How to Prevent Cat Flu
Fortunately, Cat Flu is preventable. Here are key strategies to keep your cat safe:
Vaccination: Ensure your cat's vaccinations are current. Vaccines against Feline Herpesvirus and Calicivirus significantly reduce the chance of infection. The F3 vaccine sufficiently covers against these virus', however if your cat ventures outdoors you should request the F5 vaccine for added protection.
Limit Exposure: Keeping your cat indoors minimizes their risk of coming into contact with other infected animals.
Practicing Good Hygiene: Clean their food and water dishes regularly, and maintain clean litter boxes to reduce the risk of transmission.
Quarantine New Cats: If you plan to introduce a new cat into your home, keep them separated for at least two weeks to observe for any illness.
Boarding: If you plan to board your cat at a Cattery, ask about their vaccination policy and, if possible, visit the Cattery beforehand to get a first-hand look at the health & well-being of their current guests. If their guests show any sign of Cat Flu, or if the facility does not allow tours, this is a red flag.
General Husbandry Tips for Day-to-Day Prevention
Regular care can play a critical role in keeping your cat healthy and free from Cat Flu. Here are some everyday tips:
Regular Vet Checkups: Schedule veterinary visits at least once a year, or more often if your cat has health concerns, ensuring their vaccinations and overall health are monitored.
Balanced Diet: Feed your cat a nutritious diet tailored to their age and needs. A healthy cat has a stronger immune system.
Environment Enrichment: Keeping your cat active with toys and climbing structures can help maintain their physical and mental health, and limit their need to venture outdoors.
Stress Reduction: A calm environment can prevent stress, which affects your cat's immune response. Design your home to include safe spaces and hiding spots.
Hydration: Always provide fresh water to keep your cat hydrated, especially during illness when dehydration risks escalate.
Remember, if in doubt, always isolate your cat and call your Vet for advice. Cat Flu can usually be treated with antibiotics, but remember, once a cat has been infected it can be a life-long carrier of the virus, so prevention is very important!
At LuLu's Cattery, we insist that all guests are a minimum of F3 vaccinated. We also ensure that our cleaning procedures are strictly adhered to, to ensure no cross-contamination. All bowls, bedding and litter trays are thoroughly cleaned & sanitised between guests. PLUS our wonderful windows ensure that there is sufficient air-flow in all Suites to prevent bacteria from hiding & multiplying. To date, we have not had a case of Cat Flu and that is a record that we intend to keep!
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