Only one single substance has so far been mentioned in the literature as capable in itself of producing a lymphocytosis.
Doubtless in these cases also the lymphocytosis is due to the stimulation and swelling of the tracheobronchial glands.
lymphocytosis lym·pho·cy·to·sis (lĭm'fō-sī-tō'sĭs)
A condition marked by an abnormal increase in the number of lymphocytes in the bloodstream, usually resulting from infection or inflammation. Also called lymphocythemia, lymphocytic leukocytosis.