human transfer factors ( tf ) active in specifically inducing responsiveness in human thymus-derived ( t ) lymphocytes previously nonresponsive to purified protein derivative from myobacterium tuberculosis ( ppd ) or to coccidioides immites ( cocci ) in vitro were isolated from the dialyzable portion of extracts of immune leukocytes ( dle ) .
C0041296
tuberculosis
C0034131
ppd