'E. tarda' can be '''isolated on brain–heart infusion (BHI) agar''' or '''trypton soya agar (TSA)''' with inocula from infected internal organs or muscle and '''form small, round, convex transparent colonies''' (0.5 mm in diameter)after 24-48 hours. On '''''Edwardsiella isolation media (EIM)''''', it forms '''small green colonies with black centres'''. | 'E. tarda' can be '''isolated on brain–heart infusion (BHI) agar''' or '''trypton soya agar (TSA)''' with inocula from infected internal organs or muscle and '''form small, round, convex transparent colonies''' (0.5 mm in diameter)after 24-48 hours. On '''''Edwardsiella isolation media (EIM)''''', it forms '''small green colonies with black centres'''. |