Upper Respiratory Infections In Dogs: What Owners Should Know

Spot symptoms early and provide the right home care to help your dog breathe easier.

By Shinta
Created on

What Dog Owners Should Know About Upper Respiratory Infections in Dogs

Upper respiratory infections (URIs) are common health issues affecting dogs of all breeds and ages. Recognizing the symptoms, understanding the causes, knowing when to seek veterinary care, and taking preventive steps can make a significant difference in your pet’s recovery and wellbeing. This comprehensive guide will walk you through everything you need to know about upper respiratory infections in dogs, including identification, treatment, and prevention strategies.

What Are Upper Respiratory Infections in Dogs?

Upper respiratory infections, also referred to as canine respiratory disease or canine infectious respiratory disease complex (CIRDC), encompass a range of conditions that affect the dog’s nasal passages, trachea, throat, and in some cases, lungs. These infections can be caused by various types of viruses, bacteria, or, more rarely, fungi.

How Do Dogs Contract Respiratory Infections?

  • Contact with Infected Dogs: URIs spread rapidly in places where large numbers of dogs congregate, such as dog parks, kennels, or boarding facilities.
  • Airborne Transmission: Infected droplets from coughing, sneezing, or barking can travel through the air, infecting other dogs.
  • Contaminated Objects: Shared bowls, toys, grooming tools, or even people who have handled sick dogs can transfer pathogens.

Symptoms of Upper Respiratory Infections in Dogs

The symptoms of a URI can vary depending on the underlying cause but often include a combination of the following:

  • Coughing: Persistent, dry or moist coughing (sometimes producing white or yellow foamy mucus) often worsens with activity.
  • Sneezing: Frequent sneezing fits, usually with nasal discharge.
  • Nasal Discharge: Runny or thick discharge from the nostrils, which can be clear, yellow, or green.
  • Eye Discharge or Redness: Watery or pus-like discharge, sometimes swelling or redness of the eyes.
  • Labored Breathing: Rapid, shallow, or difficult breathing, sometimes accompanied by wheezing or snorting.
  • Fever: Elevated body temperature (over 101.5°F or 38.6°C).
  • Lethargy: General weakness, fatigue, or lack of energy.
  • Loss of Appetite: Refusal to eat or drink, which can indicate serious involvement such as pneumonia.

Note: If you observe any signs of respiratory distress such as open-mouth breathing, blue gums, or a high-pitched, honking cough, seek emergency veterinary attention immediately.

Common Causes of Upper Respiratory Infections

Many pathogens can contribute to URIs in dogs. Some of the most typical are:

Pathogen TypeCommon ExamplesNotes
VirusesCanine parainfluenza virus, Canine adenovirus-2, Canine distemper virus, Canine influenza virusOften responsible for initial infection, can weaken immune defense
BacteriaBordetella bronchiseptica (“kennel cough”), Mycoplasma spp., Streptococcus zooepidemicusBacterial co-infections are common and can complicate the course
OtherFungi (rare), parasites (such as lungworm)More rarely involved; typically in immunocompromised animals

Diagnosis: How Are Respiratory Infections Identified?

If your dog is displaying signs of a URI, your veterinarian will assess their health history and perform a thorough physical examination. The diagnostic process may include:

  • Physical Exam: Listening to chest sounds, checking mucous membranes, and palpating lymph nodes.
  • Medical History: Recent exposure to other dogs, time spent in kennels, or recent illnesses.
  • Laboratory Tests: Nasal or throat swabs for pathogen detection, bloodwork, or chest X-rays in severe cases.

Treatment and Recovery Options

Mild upper respiratory infections in healthy adult dogs are often self-limiting and resolve within a week or two. However, treatment becomes necessary if symptoms are severe, the dog is very young, elderly, or immunocompromised, or if symptoms persist or worsen.

Veterinary Treatments

  • Antibiotics: Used if a bacterial infection is confirmed or strongly suspected. Doxycycline is commonly effective against Bordetella and Mycoplasma; Azithromycin may be used for resistant cases.
  • Antivirals: Used in rare severe viral infections; more frequently, supportive care is provided.
  • Nose Drops & Nebulizers: Saline nose drops or nebulizer treatments help keep the airways moist, ease congestion, and prevent dehydration of the mucus lining.
  • Supportive Care: Providing warm, moist air, good nutrition, and proper hydration greatly supports recovery.

If complications such as pneumonia or secondary infections develop, more intensive treatment and possibly hospitalization may be needed.

Home Care and Support

  • Humidity: Run a humidifier or vaporizer where your dog sleeps. Alternatively, create a “steam room” by sitting with your pet in the bathroom with a running hot shower for 10-15 minutes.
  • Nutrition & Appetite: Encourage eating by warming up wet food, adding broth, or offering highly palatable foods like shredded chicken or tuna. Proper nutrition is vital for recovery.
  • Rest: Allow your pet plenty of quiet time in a comfortable, stress-free environment to let their immune system do its work.
  • Monitor Symptoms: Watch for worsening cough, loss of appetite, lethargy, or breathing difficulties. Seek veterinary attention if these signs develop.

When to See the Veterinarian

Most upper respiratory infections are mild, but there are situations where prompt veterinary care is essential:

  • No improvement after 3-5 days of home care or symptoms worsen
  • Labored or open-mouth breathing, wheezing, or persistent coughing fits
  • Apparent pain, bleeding, or severe nasal/eye discharge
  • Blue-tinged gums, collapse, or refusal to eat/drink

Preventing Respiratory Infections in Dogs

Prevention is always better than cure. You can reduce your dog’s risk of catching or spreading URIs by following these steps:

  • Vaccination: Keep your dog up to date on recommended vaccines such as Bordetella, canine influenza, and canine distemper.
  • Hygiene: Disinfect bowls, bedding, toys, and kennels regularly, and wash hands after handling sick dogs.
  • Avoid Exposure: Steer clear of crowds and high-risk environments (dog parks, daycare) during outbreaks.
  • Isolate Sick Animals: Keep infected pets away from healthy dogs to minimize transmission.
  • Regular Vet Visits: Routine checkups help catch early signs and ensure your dog’s general health.

Frequently Asked Questions (FAQs)

What is the difference between a cold and an upper respiratory infection?

While “cold” is a colloquial term for mild viral respiratory illness, an upper respiratory infection (URI) is a broader term that may refer to illnesses of varying severity caused by viruses or bacteria and involving the nasal passages, throat, and upper airways in dogs.

Are upper respiratory infections contagious to other pets?

Yes. Most canine URIs, such as “kennel cough,” are highly contagious among dogs, especially where many dogs are together. However, these infections are rarely transmitted to humans or other species, with a few exceptions for immunocompromised individuals or animals.

How long does it take for a dog to recover from a URI?

Most healthy dogs recover within 1-3 weeks. Puppies, seniors, or those with underlying health issues may require more time and vigilant care.

Can dogs die from upper respiratory infections?

While most cases are mild, severe infections can lead to pneumonia and be life-threatening if untreated, especially in vulnerable dogs. Early intervention and supportive care are critical for a positive outcome.

Can I treat my dog’s respiratory infection at home?

Supportive home care can ease mild cases but is not a substitute for professional veterinary treatment, especially if symptoms progress or are persistent.

Summary Table: Key Facts About Upper Respiratory Infections in Dogs

AspectDetails
Common SymptomsCoughing, sneezing, nasal discharge, eye discharge, lethargy, fever
CausesViruses (parainfluenza, influenza), bacteria (Bordetella), rarely fungi or parasites
TreatmentSupportive care, antibiotics (if bacterial), isolation, rest, nutrition, humidity
Recovery Time1-3 weeks for most dogs
Contagious?Yes, highly contagious among dogs
Preventive MeasuresVaccination, hygiene, avoid contact, isolate sick dogs

Final Tips for Dog Owners

  • Monitor your dog’s health closely and act quickly if symptoms appear.
  • Keep vaccinations current to reduce risk of severe disease.
  • Maintain good hygiene and minimize exposure wherever possible.
  • When questions or concerns arise, consult your veterinarian promptly.

References (for Further Reading)

  • American Kennel Club – Upper respiratory infections: what you need to know
  • American Animal Hospital Association – What dog owners need to know about canine respiratory infections
  • Healthy Paws Pet Insurance – Home cold treatments for upper respiratory infections in dogs and cats
Shinta is a biotechnologist turned writer. She holds a master's degree in Biotechnology from Karunya Institute of Technology and Sciences and a PG Diploma in cellular and molecular diagnostics from Manipal University. Shinta realised her love for content while working as an editor for a scientific journal.

Read full bio of Shinta