[Results of a combined use of the tuberculin provocation test and immunoenzyme analysis in phthisis].

In patients with early respiratory tuberculosis serum levels of specific antibodies were measured before and after Koch's test using an enzyme immunoassay (EIA). The latter was most informative in evaluating the baseline level of the antibodies to make a differential diagnosis of tuberculosis. When followed by EIA, the tuberculin provocative test enhances EIA sensitivity thus contributing to more effective detection of specific process of minor activity.