Abstract: A medium for lysine decarboxylation test comprises 2 to 7 g of yeast extract, 1 to 5 g of peptone, 0.5 to 1.5 g of glucose, 0.3 to 1 g of monalkali metal dihydrogen phosphate, 10 to 40 g of L-lysine mineral acid salt, 0.01 to 0.08 of 5'-pyridoxalphosphoric ester, and 0.04 to 0.1 g of a pH indicator, and has a pH value in the range of 5.5 to 6.5 when dissolved in 2 liter of water.

Abstract: A connector for a catheter, which comprises a hub provided at the leading end thereof with a hollow needle tube; a cap capable of being detachably attached to the rear end of the hub and water-tightly sealing the interior of the hub; a sheath of the shape of a blind cylinder for admitting therein the aforementioned hub from the needle tube side and being slidably fitted around the outer side of the hub, the blind cylinder being provided in the closed end thereof with an aperture for permitting the needle tube to be thrust out therethrough; and a case of the shape of a blind cylinder for admitting therein the aforementioned sheath from the closed end side thereof and being detachably fitted around one end part of the sheath.