Researchers at the University of Cape Town have compared the T-cell responses of individuals who were infected with Mycobacterium tuberculosis but were able to control the infection to those who developed active disease. The researchers wrote that the shared antigens in controllers “can be considered as high-priority targets for future vaccine development.” Their results were published online in Nature Medicine on Jan. 5, 2023. In their experiments, the team first sequenced the CDR3β region of the T-cell repertoire in a total of 166 individuals with M. tuberculosis infection who progressed to either TB or controlled infection.