Abstract
The effects of sensitization, as expressed by the suppression of bacillary multiplication and the features of lesions, were studied in rabbits sensitized with the A-71 strain. The results obtained were similar to those of the previous experiments, except that the multiplication of reinoculated bacilli was markedly suppressed in the lung of rabbits sensitized 10 weeks before challenge. These effects of sensitization were reduced in general when animals had been sensitized for 25 weeks before challenge.
