FleaFree Feline

If you have a cold, you may wonder if your cat can get this illness too. While cats can be infected with viruses that cause symptoms that may look similar to human colds, they are unlikely to catch your cold virus. However, several common upper respiratory infections occur in cats and may require veterinary care. Here's what to do if you think your cat has a cold or other respiratory illness.

Can Your Cat Catch Your Cold?

No, cats can't catch the common cold from humans, but they can contract other respiratory diseases. Your cat cannot catch a cold virus from you because most cold-causing viruses in people are specific to humans.

When people "catch" colds, they become infected with viruses that cause symptoms of upper respiratory illness. These may include a sore throat, cough, runny nose and congestion, headache, and body aches. Viruses that commonly cause colds in people include respiratory syncytial virus, human parainfluenza viruses, some human coronaviruses, adenovirus, and human metapneumovirus.

Cold viruses are spread by person-to-person contact, and there is no cure. Treatment involves supportive care, like getting plenty of rest and staying hydrated, while the immune system fights off the infection. Most people recover from colds in about 7-10 days. Colds may pose a greater risk to people with compromised immune systems or who suffer from respiratory conditions like asthma.

Even though your cat won't catch your cold virus, there are other illnesses they can get from people or other animals. If you are sick, it's always a good idea to wash your hands thoroughly before and after handling your cat.

How Do Cats Catch Colds?

Colds in cats are called upper respiratory infections, sometimes abbreviated as URIs, because of the area of the respiratory tract they commonly affect. URIs can be caused by viruses, bacteria, and fungi. These are easily spread between cats, especially in crowded, stressful conditions like animal shelters. Even indoor cats can catch colds if they get exposed to a pathogen from contaminated items, people, or other animals.

The most common viruses are feline herpesvirus 1 (not the same as human herpesviruses) and feline calicivirus, which cause around 90% of upper respiratory infections in cats. Cats with feline herpesvirus are often infected as kittens, and once infected, they have the virus for life. When they are otherwise healthy and not overly stressed, the immune system controls the virus and prevents symptoms from occurring. At times of stress or if the immune system becomes compromised, they may have repeat instances of illness. Cats with feline herpesvirus can live normal, happy lives, although it can be fatal in kittens. Your veterinarian can talk with you about long-term support for a cat with feline herpesvirus.

Bacterial infections are often caused by Bordetella bronchiseptica, various Mycoplasma species, and Chlamydia felis, and they account for many of the remaining URIs in cats.

Fungal infections are caused by Cryptococcus neoformans or C. gattii and Aspergillus. Fungal infections in cats can be quite serious, sometimes life-threatening, and often are not restricted to the upper respiratory tract. Fortunately, fungal infections are an uncommon cause of upper respiratory symptoms in cats.

What Are the Symptoms of Colds in Cats?

Symptoms of upper respiratory infections in cats often include:

• Sneezing
• Nasal discharge, either clear, yellow, or green
• Runny eyes, inflammation in eyelids and the tissues around the eyeball (conjunctivitis)
• Coughing
• Sores in the mouth or on the nose
• Congestion
• Snoring
• Loss of appetite
• Fever
  
• Voice changes, like becoming hoarse when meowing

Contact your veterinarian for advice if you notice the above signs. However, take your cat to a vet as soon as possible if you observe:

• Open-mouthed breathing, rapid breathing, or any breathing difficulties
• Your cat has stopped eating or drinking for more than one day
• Lethargy, listlessness, or behavior changes
• Fever over 103 degrees F (if you can take your cat's temperature at home)
  

How Are Colds Treated in Cats?

Treatment for your cat's cold will depend on the severity and underlying cause.

Bacterial and fungal infections require medications to clear the infection. Sometimes long courses of medications are needed, particularly for fungal infections.

Viral infections do not need to be treated with medications unless they become severe or develop secondary bacterial infections. Most cats recover from upper respiratory viral infections in about 7-10 days.

Cats with severe upper respiratory infections may need to be hospitalized for treatment and supportive care.

Home Treatment

If your veterinarian diagnoses a viral URI that is mild to moderate, you can often give supportive care to your cat at home until recovery.

• Make sure your cat is eating well and drinking plenty of water.
• Offer strong-smelling canned food if your cat is reluctant to eat. URIs affect a cat's ability to smell their food, so the smellier the better.
• Keep your cat isolated from other cats in the household.
• Keep your cat in a stress-free and quiet environment.
• If your cat is congested, use a humidifier or put your cat in a bathroom with the shower running until the room is steamy to help break up congestion (do not put your cat in the shower or get them wet).

If your cat does not show improvement after a few days, it's time to go back to the vet. Your cat may need to be hospitalized or given additional care to clear the infection.