Abstract
In 1882 Friedländer1 announced the discovery of a micro-organism which he believed to be the cause of lobar pneumonia and which, in his original communications, he described as a micrococcus. Since this time many reports of infection due to Klebsiella pneumoniae (commonly called Friedländer bacillus) have appeared in the literature, especially during the past twenty-five years. A review of these papers, as well as of the popular textbooks of today, makes it evident that most of the attention has been focused on the pulmonary lesions with their complications. The literature dealing with extrapulmonary Klebsiella pneumoniae infections is scanty and has not been correlated. This has prompted the writing of this paper along with a desire to report 2 unusual cases with recovery and the use of sulfadiazine therapy in 1. BACTERIOLOGY Morphology.— During the first few years following the discovery of the organism there was much confusion, owing to

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