Corgi at Pleasant Valley Pet Clinic in Placerville

Know the Signs of Dog Flu Before It Spreads

Canine influenza is a contagious respiratory illness that can move quickly through kennels, groomers, dog parks and training classes. At Pleasant Valley Pet Clinic in Placerville, CA, we help dog owners recognize the early symptoms, understand how the virus spreads and decide on the right protection for their pets.

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What Is Canine Influenza?

Canine influenza virus (CIV), often called dog flu, is a highly contagious virus that infects the respiratory tract of dogs. Two strains have been identified in the United States, H3N8 and H3N2. Because dogs have no natural immunity to these viruses, nearly every dog exposed to the virus can become infected, and most will show some signs of illness.

Symptoms of Dog Flu

Dog flu can look a lot like kennel cough, so it is easy to miss at first. Watch for these signs:

  • A persistent cough that may be moist or dry
  • Sneezing and thick nasal discharge
  • Fever
  • Lethargy and low energy
  • Reduced appetite
  • Watery or red eyes

Some dogs carry the virus and spread it without looking very sick. Others develop a more severe illness with a high fever and pneumonia, which needs prompt veterinary care.

How the Virus Spreads

Canine influenza spreads through coughing, sneezing and barking, and through contact with contaminated items such as bowls, toys, leashes, bedding and even human hands and clothing. Dogs are most at risk when they spend time around other dogs, including:

  • Boarding and daycare facilities
  • Grooming appointments
  • Dog parks and group walks
  • Training classes and dog shows
  • Shelters and rescue events

Diagnosis and Treatment

If your dog has a cough, nasal discharge or fever, call us before you come in so we can plan the visit and help keep other patients safe. Our team will examine your dog and may recommend testing to confirm the cause. Treatment is usually supportive care, such as rest, fluids, good nutrition and medication to keep your dog comfortable. Dogs with complications like secondary bacterial infection or pneumonia may need additional treatment. Most healthy dogs recover within a few weeks, and they should be kept away from other dogs while they are contagious.

Prevention

The best defense is a combination of good habits and vaccination. Keep sick dogs at home, wash your hands and clean shared items after contact with other dogs, and ask your boarding or grooming facility about their health requirements. A canine flu vaccine can reduce the chance of infection and lessen the severity of illness if your dog is exposed. Read more on our canine flu vaccine page, or ask us whether it fits into your dog’s overall vaccination plan.

Dog Flu Questions From Placerville Pet Owners

What is canine influenza?

Canine influenza is a contagious respiratory disease caused by influenza A viruses that infect dogs. The two strains found in the United States are H3N8 and H3N2. It spreads easily between dogs that share the same space.

What are the symptoms of dog flu?

Common signs include coughing, sneezing, nasal discharge, fever, lethargy and a reduced appetite. Some dogs have mild symptoms, while others can develop pneumonia and need urgent care.

How is dog flu different from kennel cough?

The two illnesses look very similar, and both cause coughing. Canine influenza is caused by a flu virus, and it often brings fever and lethargy. A veterinary exam and testing are the best way to tell which one your dog has.

How does canine influenza spread?

It spreads through respiratory droplets from coughing, sneezing and barking, and through shared items like bowls, toys and leashes. People can also carry the virus on their hands and clothing between dogs.

How long is a sick dog contagious?

Dogs can spread the virus for a period of time, sometimes before symptoms begin. Your veterinarian will advise you on how long to keep your dog away from other dogs during recovery.

Can my dog get a vaccine for canine influenza?

Yes. A canine flu vaccine is available, and it may be recommended for dogs that board, go to daycare or grooming, attend classes or meet other dogs often. Our team can help you decide if it is right for your dog.

What should I do if I think my dog has the flu?

Keep your dog home and away from other pets, and call our Placerville clinic at (530) 644-2424 before coming in. We will let you know the best way to bring your dog in and how to keep others safe.

Protect Your Dog This Season

Have questions about dog flu or want to talk about vaccination? Call (530) 644-2424 or request a visit with our team at Pleasant Valley Pet Clinic.

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