Canine Influenza Virus

Dog flu or Canine Influenza Virus (CIV) is highly contagious, and there have been recently confirmed cases in North Carolina, including two deaths. Here are some facts you need to know about the virus:

  • CIV is most commonly found in shelters, boarding/daycare facilities, dog parks, grooming facilities, and anywhere else dogs come together in groups
  • There are two strains: CIV H3N8 and CIV H3N2
  • Symptoms include coughing, runny nose, lethargy, decreased appetite, and fever
  • CIV can be transmitted from dog to dog on human hands/clothing and through the air, physical contact, and objects (such as food/water bowls and toys)
  • CIV remains infectious on surfaces for 48 hours, clothing for 24 hours, and hands for 12 hours
  • Dogs are most contagious 2 to 4 days after contracting the virus and can remain contagious up to 3-4 weeks
  • About 80% of dogs exposed become infected and develop symptoms
  • CIV can be transmitted by dogs that are not showing symptoms
  • Symptomatic/supportive care includes subcutaneous fluids and oral antibiotics, but there is no treatment that completely clears canine influenza because it is viral
  • Infected dogs can develop pneumonia, requiring hospitalization
  • While the mortality rate is very low, there have been deaths caused by canine influenza (especially in dogs with compromised immune systems, senior dogs, and puppies)
  • CIV is not seasonal, but is year-round
  • There have not been any cases of canine influenza infections in humans

On June 20th, Friendship Animal Hospital will be participating in Vaccination Day to raise awareness and prevent the spread of this potentially deadly virus. Receive $15 off your dog’s influenza vaccine on June 20th only. This vaccination will protect your dog against both strains of the virus.

For More Information on CIV:

Updates on Confirmed Cases in NC:

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