This is the eighth in a series1 of summary reports dealing with the progress of cooperative studies in the chemotherapy of tuberculosis conducted by the Veterans Administration-Armed Forces study group. Findings presented at the 16th Conference of this group held in St. Louis, Feb. 11-14, 1957, form the basis for this report. No effort will be made to report on every paper or every viewpoint presented, but we will attempt to reflect the content and the context of the discussions with as much objectivity as possible. Since this report is intended to inform the practitioner upon whom greater responsibility for directing at least some phases of the treatment of more and more tuberculous patients now rests, principles will be stressed, with avoidance of controversial and technical discussion as much as possible.
Basic Chemotherapeutic Regimens
In previous reports on the study of three basic chemotherapeutic regimens, namely, isoniazid plus aminosalicylic