C.L.E.D. (Bevis modification)

(Cystine Lactose Electrolyte Deficient - Double Indicator)

LAB 6

Description

Bevis modified Mackey and Sandys original medium by introducing a double indicator to improve the differentiation of lactose and non lactose fermenting coliforms, staphylococci and streptococci. The swarming of Proteus spp. is inhibited. LAB M C.L.E.D. will grow many of the more demanding streptococci of Lancefield groups A, B, C, G and F. This medium may not grow Pasteurella spp. or halophilic organisms.

References

Bevis, T.D. (1968). A modified electrolyte-deficient culture medi J. Med. Lab. Tech., 25: 38-41.

Mackey, J.P. and Sandys, G.H. (1966). Diagnosis of urin infections, Brit.Med. J., 1: 1173.

Sandys, G.H. (1960). A new medium for preventing swarming Proteus spp. with a description of a new medium suitable for us routine laboratory practice. J. Med.Lab. Tech., 17: 224-233.