Serosurvey of Coyotes ( Canis latrans ), Foxes ( Vulpes vulpes , Urocyon cinereoargenteus ), and Raccoons ( Procyon lotor ) for Exposure to Influenza A Viruses in the USA.

We tested coyote (Canis latrans), fox (Urocyon cinereoargenteus, Vulpes vulpes), and raccoon (Procyon lotor) sera for influenza A virus (IAV) exposure. We found 2/139 samples (1 coyote, 1 raccoon) had IAV antibodies and hemagglutination inhibition assays revealed the antibodies to the 2009/2010 H1N1 human pandemic virus or to the 2007 human seasonal H1N1 virus.