Seroprevalence and Risk Factors for Canine H3N8 Influenza Virus Exposure in Household Dogs in Colorado

Abstract

CIV seropositivity in household dogs in Colorado is low, although it has increased since 2004. Antibody titers to the 3 CIV isolates were comparable, suggesting that measurable antigenic drift has not yet occurred. Finally, dogs boarded in kennels or attending daycare might be at an increased risk of CIV infection.