If You Had Upper Respiratory Infection Can I Get It Again

You may have heard your veterinarian talk about upper respiratory infections in cats before, but what are they and how do you know if your cat has one? Upper respiratory infections, otherwise known as URI, are a very common occurrence in domestic cats.

What Are Upper Respiratory Infections in Cats?

Cats develop upper respiratory infections from exposure to viruses and bacteria that cause sneezing, eye discharge and a whole host of other symptoms. These upper respiratory infections are very contagious since cats can be infected with both viruses and bacteria at the same time. Symptoms can range from mild to severe.

The most common type of URI in cats include Feline Herpesvirus Type-1 (also called feline viral rhinotracheitis, or FVR) as well as Feline Calicivirus, according to Pet Health Network. Bordetella bronchiseptica and Chlamydophila felis are the most common bacterial causes.

How Do These Infections Spread?

Typically, an infected cat will sneeze and spread the virus and/or bacteria in secretions from the nose, eyes or saliva. The infection can be spread from cat to cat, or by exposure to fomites, which is a technical term for any object that can carry virus or bacteria. Fomites can include food and water bowls, litter boxes, bedding, toys, carriers, cat trees, cages and even you!

Cats infected with herpesvirus become carriers of the virus for life. This means that they will carry the virus in a dormant state for their whole life, but they won't show signs or be contagious unless the virus is reactivated by stress. Sources of stress can include moving, boarding, other illness, surgery or introducing new cats to the home. Cats infected with herpesvirus do best in a quiet home where they are the only cat.

About half of the cats infected with calicivirus will carry the disease for a couple of months, a few may carry it for life. The concern with persistent carriers of herpesvirus and calicivirus is that these cats will not show symptoms but may still infect other cats.

Signs of Upper Respiratory Infections in Cats

In most cats, uncomplicated URIs last about 7 to 21 days. If your cat is immunosuppressed (meaning their immune system has trouble fighting infections) or has other issues, the URI may last longer. Once a cat is exposed, the virus or bacteria incubates for 2 to 10 days, and then symptoms develop. A cat is considered contagious the whole time.

Signs of upper respiratory infection in cats may include:

• Sneezing
• Fever
• Loss of appetite
• Low energy
• Red eyes, swollen eyelids or eyes swollen shut
• Snot
• Eye discharge — either clear, green, white or yellow
• Bad breath

Diagnosing Upper Respiratory Infections in Cats

Most of the time, cat upper respiratory infections are diagnosed by physical exam and history from the owner. Usually, the individual bacteria or virus is not identified unless the cat is not responding to treatment.

Your vet will conduct a complete physical exam and gather an oral history from you. If testing is required, usually a swab from the eye, nose or back of throat is collected. In rare cases, additional testing such as X-rays, blood tests and culture testing may be recommended.

Is My Family at Risk?

With rare exception, most of the infectious agents that cause URIs in cats will not pose an infection risk to people — they only infect cats. The exception is Bordetella bronchiseptica, which can, in rare cases, cause problems for people who are immunosuppressed. If anybody in your household develops signs of an upper respiratory infection or skin sores while your cat is sick, consult with your physician, and always use good hygiene practices to prevent the spread of disease.

Treating Upper Respiratory Infections in Cats

Thankfully, many times URI cases have generally mild signs that will resolve on their own over time (much like if you caught the common cold). However, if your cat has colored eye or nasal discharge, your vet may prescribe antibiotics, either orally or in a topical eye. If your cat is not responding, then your vet will change medications as indicated to appropriately treat the infection. If your cat only has mild sneezing or clear eye discharge, your vet may not recommend needing to use antibiotics.

Most cats with upper respiratory infections can be treated at home. If they are congested, providing humidification through steam treatment two to three times per day will help loosen secretions. You can easily provide steam treatment by shutting your cat in the bathroom for 10 to 15 minutes and turning the shower on hot so that it produces a lot of steam.

If your cat is experiencing nasal or eye discharge, gently clean it up using a warm, moist hand towel. When cats have upper respiratory infections, they may not have much of an appetite. Providing your cat with extra delicious canned food during this time is a good way to care for your cat. Canned food can be warmed up to increase the aroma, and has the added bonus of providing more moisture to your cat. If your cat still won't eat for more than a day or two, talk to your veterinarian about appetite stimulants.

If a cat is dehydrated, fluid therapy in the form of subcutaneous fluids or intravenous fluids may be recommended. Some cats are so sick that they must be hospitalized, but you can avoid this by seeking veterinary attention as soon as possible if your cat displays signs of a URI. However, keep in mind that URI infections are highly contagious between animals. Thus, you should notify your vet prior to arriving if you suspect your cat has a URI, so they can take necessary precautions to keep other animals at the hospital safe, especially those that may have a compromised immune system.

Keep your cat away from any cats that display signs of upper respiratory infection, and keep your cat up-to-date on vaccinations, which protect against several infectious causes of feline upper respiratory infections.

Contributor Bio

Dr. Sarah Wooten

A 2002 graduate of UC Davis School of Veterinary Medicine, Dr. Sarah Wooten is a well-known international speaker in the veterinary and animal health care spaces. She has 10 years experience in public speaking and media work, and writes for a large number of online and print animal health publications, such as chewy.com, petMD, Vetstreet, Hill's Education Blog, and DVM360 print and online publications, Healthy Pet Magazine, and the Bark. Dr. Wooten has spoken in the veterinary education space for 5 years, and speaks on leadership, client communication, and personal development. Dr. Wooten is also a certified veterinary journalist, a member of the AVMA, and has 16 years experience in small animal veterinary practice. In addition to being a speaker, author, veterinarian, and co-creator of the wildly popular card game 'Vets Against Insanity', she co-owns Elevated Eateries Restaurant group in Greeley with her husband of 21 years, and together they are raising 3 slightly feral mini-humans. When it is time to play, she can be found skiing in Colorado, diving with sharks in the Caribbean, or training kenpo karate in her local dojo. Go big...or go home.

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Source: https://www.hillspet.com/cat-care/healthcare/upper-respiratory-infections-in-cats

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