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H3N2 Canine Influenza Appears in Florida

June 5, 2017

Originally found in the U.S. in 2015, H3N2 canine influenza has made its first appearance in Florida. Officials confirmed seven cases of H3N2 canine influenza early last week with six other pending cases of the disease.

H3N2 canine influenza is highly contagious and symptoms appear 2 - 4 days after exposure to the virus. Dogs can transmit influenza to other dogs between 1 and 5 days after they initially become infected, so a dog may share the virus with and infect other dogs before it appears to be ill. Cats in the U.S. have occasionally been diagnosed with H3N2 infections.

We hope the fact sheet below helps answer questions pet owners may have about the canine influenza viruses. You can also download our printable fact sheet.

2017 Canine Influenza Fact Sheet Pg 1

2017 Canine Influenza Fact Sheet Pg 2