Abstract
When sensitized to the tubercle bacilli or inoculated with BCG, early Lepromin reaction similar to that of Tuberculin reaction is reported to occur in the normal human, guinea pigs and rabbits.
According to Chase, normal guinea pigs attain tuberculin allergy by the passive cellular transfer from the guinea pig sensitized with tubercule bacilli. The author confirmed his study and at the same time the attitude of Lepromin reaction was investigated.
The results suggest that the ascitic cells of the guinea pig sensitized with tubercle bacilli contain a certain heat labile reaction factor in common between Tuberculin reac-tion and Lepromin reaction.
