cut i-reaction

(ku’te-re-ak’shun) [L. cu’tis skin + reaction}. A local reaction of the skin, occurring in certain infections, following the inoculation or application of an extract of the organism which causes the infection. It is employed for the diagnosis of the disease. most commonly in tuberculosis, but also in typhoid, syphilis, glanders, etc. See Lautier’s iest, Moro reaction, Pirquet’s reaction. differential c., inoculation at one and the same time of old tuberculin, a filtrate of human tubercle bacilli. and a filtrate of bovine tubercle bacilli in order to determine whether the patient is tuberculous or not, and if he is, whether the infection is human or bovine.