Abstract
Although Escherichia coli are present in large numbers in the intestinal tract of most animals, it is likely that some specific strains are associated with diseases. For birds, these strains are called APEC. Among the virulence genes that can be found in APEC infections, are the gene for fimbriae P (papC) related to the phenomenon of adhesion and the tsh gene, which encodes to a hemagglut…