The Dog Flu

10 facts you should know

Dog Food

FAQ

Where

To Buy

Facts on Dog Flu: 10 Things Every Dog Owner Should Know

Dog flu, also known as canine influenza, is a contagious respiratory infection that can affect dogs of any age or breed. Understanding the facts on dog flu can help dog owners recognize common symptoms, understand how canine influenza spreads, and know when to contact a veterinarian. Learn about the causes of dog flu, available treatment options, recovery, and ways to help protect your dog from infection.

Dog Flu Facts at a Glance

  • What is dog flu? A contagious respiratory illness caused by canine influenza viruses.
  • What are the symptoms? Coughing, sneezing, nasal or eye discharge, fever, tiredness, and reduced appetite.
  • How does dog flu spread? Through respiratory droplets, close contact with infected dogs, and contaminated objects or surfaces.
  • Is dog flu contagious to other dogs? Yes. Infected dogs can sometimes spread the virus before showing symptoms.
  • Can dogs recover from dog flu? Most dogs recover within two to three weeks, although some develop serious complications.
  • How is dog flu treated? Treatment typically focuses on supportive care and managing complications under veterinary guidance.
  • Can dog flu be prevented? Good hygiene, avoiding sick dogs, and discussing vaccination with a veterinarian can help reduce risk.

10 Facts About Canine Influenza

1. What Is Dog Flu? Understanding Canine Influenza.

Dog flu, or canine influenza, is a contagious respiratory infection caused by influenza viruses that affect dogs. It can cause symptoms ranging from a mild cough to more serious respiratory illness. Because infected dogs can spread the virus to other dogs, early recognition and appropriate precautions are important.

2. Which Types of Canine Influenza Affect Dogs?

Two canine influenza virus subtypes have been identified in dogs: H3N8 and H3N2. H3N8 originated in horses before adapting to dogs, while H3N2 originated from an avian influenza virus. H3N2 is the subtype currently associated with canine influenza outbreaks in the United States. H3N8 has not been reported in the United States since 2016, and ongoing circulation has not been established.

3. How Does Dog Flu Spread Between Dogs?

Canine influenza spreads through respiratory droplets released when infected dogs cough or sneeze. It can also spread through contaminated objects, including food and water bowls, toys, leashes, and shared surfaces. Dogs in boarding facilities, shelters, daycare centers, and other places where dogs gather may face greater exposure. People can also transfer the virus on contaminated hands or clothing.

4. Can Humans Catch Dog Flu From Dogs?

There is no evidence that canine influenza viruses have spread from dogs to people. Dog flu is different from the seasonal influenza viruses that commonly infect humans. Although people can transfer the virus between dogs on contaminated hands or clothing, there is currently no evidence of human infection with canine influenza viruses.

Dog receiving vet care for dog flu | Star Milling Co.

5. What Are the Symptoms of Dog Flu?

Common dog flu symptoms include persistent coughing, sneezing, nasal discharge, eye discharge, fever, tiredness, and reduced appetite. Some dogs develop more serious respiratory complications, including pneumonia. Because other illnesses, including kennel cough, can cause similar symptoms, a veterinarian should evaluate a dog with suspected canine influenza.

6. Can Dogs Spread the Flu Without Showing Symptoms?

Yes. Some dogs infected with canine influenza may show few or no obvious symptoms while still spreading the virus to other dogs. If your dog has been exposed to an infected dog, monitor for signs of respiratory illness and limit contact with other dogs if illness is suspected. Contact your veterinarian for advice about isolation and when normal social activities can safely resume.

7. How Serious Is Dog Flu & How Long Does It Last?

Many dogs experience mild illness and recover within two to three weeks. However, some dogs develop secondary infections or pneumonia that require additional veterinary care. Because symptoms can resemble other respiratory diseases, seek veterinary guidance if your dog develops a persistent cough, fever, reduced appetite, or unusual tiredness. Difficulty breathing or rapidly worsening symptoms warrant urgent veterinary attention.

Dog resting at home while recovering from respiratory illness

8. How Is Dog Flu Treated?

There is no specific antiviral treatment routinely used for canine influenza. Veterinary care focuses on supportive treatment, maintaining hydration and comfort, and monitoring for complications. However, dogs with a contagious respiratory disease (of any kind) should be isolated from other dogs to prevent spreading.

Antibiotics may be prescribed when a secondary bacterial infection is present, but they do not treat the influenza virus itself. Follow your veterinarian’s instructions and do not give human cold or flu medications to your dog unless specifically directed by a veterinarian.

9. Can Dogs Get Vaccinated Against Dog Flu?

Vaccines for canine influenza H3N2 are available in the United States. Vaccination may be recommended for dogs that regularly attend daycare, visit boarding facilities, travel, or spend time around large groups of dogs. The vaccine does not guarantee that a dog will avoid infection, and protection depends on the vaccine and the virus involved. Ask your veterinarian whether canine influenza vaccination is appropriate for your dog.

10. When Should You Take Your Dog to the Vet for Dog Flu?

Contact your veterinarian if your dog develops a persistent cough, sneezing, nasal or eye discharge, fever, or unusual tiredness. Call ahead before visiting if canine influenza is suspected so the clinic can take steps to limit exposure to other dogs. Seek urgent veterinary care if your dog has difficulty breathing or experiences rapidly worsening symptoms. Early veterinary guidance can help identify complications and determine the appropriate care.

How to Help Protect Your Dog From Dog Flu

Maintaining your dog’s overall health is important, but preventing canine influenza also requires practical precautions. Avoid contact with dogs showing signs of respiratory illness, practice good hygiene, and ask your veterinarian whether vaccination is appropriate for your dog’s lifestyle. If your dog develops flu-like symptoms, keep them away from other dogs and seek veterinary guidance.

Of course, proper nutrition is another important part of everyday canine wellness. Star Milling offers dog food options, including Ace Hi Chunk Dog Food, Kelley’s K-9 Country Dog Food, or Ultra Balance Meat & Rice Dog Food to help dog owners meet their pets’ nutritional needs.

Dog flu symptoms can vary depending on your pet, but being informed and proactive can help protect your furry friend. Stay vigilant, consult your vet, and keep your dog’s health a top priority.

Have more questions?

Visit our Dog Food FAQ for more information.