Pet Health

Upper Respiratory Infections in Cats

Learn about upper respiratory infections in cats, including symptoms, causes, and treatment options. Keep your feline friend healthy and happy!
Author: Veterinary Team
Dial A Vet
Updated
June 6, 2025
|
Published
June 6, 2025
Close-up of a cat with watery eyes and a runny nose, illustrating symptoms of upper respiratory infections.

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Is your cat sneezing, sniffling, or acting under the weather? Upper respiratory infections (URIs) in cats are a common health concern, especially for pet parents with multi-cat households or outdoor kitties. While these infections can be uncomfortable for your feline friend, the good news is that they’re often manageable with the right care. Let’s dive into everything you need to know to keep your cat healthy and breathing easy.

⚠️ What to Watch For

URIs in cats can range from mild to severe, so it’s important to recognize the signs early. Symptoms often resemble those of a human cold but can escalate if left untreated. Keep an eye out for the following:

  • Frequent sneezing
  • Nasal discharge (clear, yellow, or green)
  • Watery or goopy eyes
  • Coughing or gagging
  • Loss of appetite
  • Fever
  • Lethargy or reduced activity
  • Open-mouth breathing or difficulty breathing

While some cats may only show mild symptoms, others—especially kittens, senior cats, or those with underlying conditions—can develop more severe complications, such as dehydration or pneumonia.

🔍 Possible Causes

Upper respiratory infections in cats are typically caused by viruses or bacteria, which spread easily in environments where cats are in close contact. Here are the most common culprits:

  • Feline Herpesvirus (FHV-1): A highly contagious virus that causes sneezing, nasal congestion, and eye issues. Cats infected with FHV-1 may carry it for life, with flare-ups triggered by stress.
  • Feline Calicivirus (FCV): Another viral cause of URIs, often associated with oral ulcers in addition to respiratory symptoms.
  • Bordetella bronchiseptica: A bacterial infection more common in multi-cat households or shelters.
  • Chlamydia felis: A bacterial infection primarily affecting the eyes, causing conjunctivitis alongside respiratory symptoms.

These pathogens spread through sneezes, saliva, and shared items like food bowls or bedding. Cats in shelters or outdoor cats are at higher risk due to frequent exposure to other animals.

✅ What You Can Do at Home

If your cat shows mild symptoms of a URI, you can often provide supportive care at home to help them recover. Here are some practical steps:

  • Keep them hydrated: Make sure your cat has access to fresh water at all times. If they’re not drinking, try offering wet food to boost their fluid intake.
  • Encourage eating: Cats with a stuffy nose may lose their appetite. Warm up their food to enhance the aroma or offer strong-smelling options like tuna to entice them.
  • Use a humidifier: Adding moisture to the air can help relieve nasal congestion. Alternatively, you can take your cat into a steamy bathroom for a few minutes.
  • Gently clean their face: Use a damp cloth to wipe away nasal discharge or tear stains to keep them comfortable and prevent irritation.
  • Minimize stress: Stress can worsen symptoms, especially in cats with FHV-1. Provide a quiet, cozy space where your cat can rest undisturbed.

While these steps can help manage symptoms, it’s crucial to monitor your cat closely. If their condition worsens or they show signs of severe illness, it’s time to seek veterinary care.

💡 When to Call a Vet

Sometimes, at-home care isn’t enough, and your cat may need medical intervention. Contact your veterinarian or use a telehealth service like Dial A Vet if you notice:

  • Persistent symptoms lasting more than a week
  • Severe lethargy or weakness
  • Refusal to eat or drink for 24 hours
  • Difficulty breathing or open-mouth breathing
  • Yellow or green nasal discharge, which may indicate a bacterial infection
  • Signs of dehydration, such as dry gums or reduced skin elasticity

Your vet may prescribe antibiotics for bacterial infections, antiviral medications, or other treatments depending on the cause and severity of the URI. In some cases, fluid therapy or hospitalization may be necessary.

FAQs

Q: Can upper respiratory infections in cats go away on their own?
A: Mild cases may resolve without treatment, but it’s important to monitor your cat closely. If symptoms persist or worsen, seek veterinary care.

Q: Are upper respiratory infections contagious to other cats?
A: Yes, URIs are highly contagious among cats. If you have multiple cats, isolate the sick one and practice good hygiene to prevent the infection from spreading.

Q: Can I use over-the-counter cold medicine for my cat?
A: No, never give your cat human medications without consulting a vet. Many common cold remedies are toxic to cats.

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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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