'''Clinical signs''' are quite '''pathognomonic for ESC''' but '''PCR''' is used to confirm the presence of ''E. ictaluri'' in blood and tissues but other methods have been used such as '''indirect FAT (detecting antibodies)''' and '''ELISA''' test. | '''Clinical signs''' are quite '''pathognomonic for ESC''' but '''PCR''' is used to confirm the presence of ''E. ictaluri'' in blood and tissues but other methods have been used such as '''indirect FAT (detecting antibodies)''' and '''ELISA''' test. |