Did you know that the Centers for Disease Control and Prevention (CDC) is a resource for information on canine influenza? The CDC website notes that canine influenza (also known as dog flu) is a contagious respiratory disease in dogs caused by specific Type A influenza viruses known to infect dogs. Virus H3N8 originated in horses and Virus H3N2 originated in birds- and has been reported to spread to cats from dogs.
Although there has not been a single case of human infection with canine influenza virus reported, the CDC notes that the virus is constantly changing. Thus, it is possible that at some point it could infect and spread easily between people.
The signs of this illness in dogs are cough, runny nose, fever, lethargy, eye discharge, and reduced appetite. But not all dogs will show signs of illness. Most dogs recover in 2 to 3 weeks. However, some dogs may develop secondary bacterial infections which may lead to more severe illness and pneumonia.
According to CDC, there is testing as well as vaccines available for dog flu. The CDC recommends that you contact your veterinarian for more information.
Source:
https://www.cdc.gov/flu/other/canine-flu/keyfacts.html#what
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