Coagulase-negative strains of staphylococcus possessing antigen 51 as agents of urinary infection

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Abstract
A group of strains of Staphylococcus albus is described which produced neither coagulase nor haemolysin, was slightly sensitive or resistant to novobiocin, and sensitive to all other antibiotics, to sulphonamides, and to nitrofurantoin. The agglutinating antigen 51 was isolated from all strains from patients with urinary infections and abundant pyuria. In more than 40 cases studied it was not possible to isolate any other bacterial agent, and the cure of clinical symptoms always coincided with the disappearance of the coagulase-negative staphylococcus strain.