Kennel Cough in Puppies: Symptoms, Diagnosis, and Effective Treatment

In This Article

• Definition
• Signs and Symptoms
• Diagnosis and Treatment
• Home Care
• Prevention

Canine infectious respiratory disease complex—also known as kennel cough or canine infectious tracheobronchitis—is a highly contagious and common condition affecting puppies and adult dogs. The disease causes inflammation of the dog's trachea and bronchi, which are tubes leading to the lungs.

All dogs are susceptible, but the disease is most common in dogs exposed to crowded conditions, like those found in boarding kennels, doggy daycares, animal shelters, dog shows, bad breeders, or other stressful conditions.

Most cases cause mild disease, with symptoms that tend to be more aggravating to owners than dangerous to the dog. However, if left untreated, kennel cough can develop into life-threatening pneumonia. The illness is rarely, if ever, contagious to humans.

What is kennel cough in dogs?

Kennel cough—also known as canine infectious respiratory disease complex or canine infectious tracheobronchitis—is a common condition that can affect both puppies and adult dogs. The disease is highly contagious and causes inflammation of the dog's trachea and bronchi, resulting in a telltale cough.

Definition

Kennel cough is a condition that can be caused by one or a combination of several different infectious agents. The most common culprits are the bacteria Bordetella bronchiseptica and Mycoplasma, the canine parainfluenza virus, and the canine adenovirus-2 (CAV-2). These agents damage the cilia (tiny hair-like projections) within an infected dog's airways.

Cilia normally protect the respiratory tract by clearing away irritants like dust, bacteria, and other microorganisms with wave-like motions similar to wind moving across a grassy field. When they are damaged, the protective mechanism breaks down, which increases the chances that one or more infections will develop.

Kennel cough spreads through the saliva and nasal secretions. It can happen through direct contact when your puppy sniffs or licks an infected dog or a contaminated object in their environment. However, coughing also transmits the agents through the air from one dog to another. Symptoms of infection usually develop between two and 10 days following exposure, which is another good reason to quarantine new puppies.

Signs and Symptoms

The typical sign of kennel cough is, in fact, a chronic high-pitched honking cough. It can often be prompted by excitement, drinking, or gentle pressure applied to the base of the puppy’s neck. Your puppy tugging at its leash may result in a paroxysm. Less commonly, there is also nasal or eye discharge and some dogs may suffer from a slight fever or loss of appetite. The symptoms can last anywhere from a few days to several weeks.

Diagnosis and Treatment

Your vet will diagnose kennel cough based on your dog's recent history and clinical signs. For instance, if your puppy was recently adopted from a shelter or kennel—or spent time at a boarding facility—those are all risk factors. In most cases, it's not important to identify the infectious agent responsible for a dog's symptoms, but tests can be run if that becomes necessary.

Kennel cough can develop into a vicious cycle. The infection causes irritation that prompts a cough, which then causes even more irritation. Mild cases may resolve at home with rest and nursing care, but if a puppy's symptoms are severe or fail to improve relatively rapidly, veterinary care will be necessary.

Cough suppressants to relieve a persistent cough can help and antibiotics may be required when bacterial infections are involved. Anti-inflammatory drugs and bronchodilators (which open breathing passages) may also be prescribed. If pneumonia develops, your dog will need more aggressive treatment.

Home Care

When your puppy suffers from congestion, there are home remedies to soothe its symptoms during convalescence.

Use a vaporizer to help unclog the nose. Put your pet in a fairly small room with a cool-mist humidifier and use it just the same as you would for a child a couple of times a day. This will not only help break up the congestion but also moisten irritated eyes and nostrils and make them feel better.

If you don’t have a vaporizer or humidifier, a hot shower can work. Take your dog into the bathroom with you and run the hot shower so that the air fills with steam. A 10-minute session several times a day works great—don’t go for longer than that, because too much hot, moist air can make it hard for some pets to breathe, especially short-faced bulldogs and pugs.

You can also use a warm washcloth or cotton balls to soak and soften eye or nose secretions and clean them off. Don’t peel dried matter off because that can hurt or damage the skin.

Refusing to eat and drink can make a puppy even sicker. Ask your vet about offering pungent and more tempting foods to spark a sick pup’s appetite. Warm the food for five seconds in the microwave to just below body temperature—about 95 to 98 degrees Fahrenheit. That will unlock the aroma so the food smells more pungent and penetrates even a stuffy nose.

Moisture also helps enhance the aroma, so try adding a bit of warm water or chicken broth to your dog's regular food. Run it through the blender to make a mush, and there’s a good chance that will tempt their appetite. If your puppy's appetite doesn't improve within 24 hours, call your veterinarian.

Prevention

Isolate any dogs with suspected kennel cough. They may remain contagious to other dogs for several weeks. Protective vaccinations are also available. However, protecting your puppy from kennel cough is complicated by the fact that many different infectious agents may be involved, some of which can't be prevented via vaccination.

Some vaccinations are given by injection, while others are given as drops in the nose or mouth to stimulate what's known as a "local immunity." Your veterinarian can advise you on the best option for your dog. Dogs at high risk for kennel cough may benefit from annual vaccinations. These vaccinations may be given alone or in combination with others, and are often required before your puppy can be boarded at a kennel or attend puppy classes.

If you suspect your pet is sick, call your vet immediately. For health-related questions, always consult your veterinarian, as they have examined your pet, know the pet's health history, and can make the best recommendations for your pet.