Bioassay results of unrewarded generalization trials (pair-wise, between-subjects comparisons of feces).

In all cases, mice were trained to select the maze arm associated with the odor of feces collected after experimental AIV infection. “Pre” indicates feces collected prior to experimental infection; “Post” indicates collection after infection. Ducks 5 and 12 were experimentally infected with avian influenza. Ducks 1 and 2 received a sham treatment. Responses were subjected to tests of binomial proportions equal to 50%.1Indicates rate of selection of 12 - Pre sample.2Indicates rate of selection of 5 - Post sample.