Specificity
This antibody recognises PPD from Mycobacterium tuberculosis. Rabbit anti M. tuberculosis has not been cross absorbed and may react with related micro-organisms, however the antibody is non-reactive with E.coli K12, Salmonella typhimurium, Pseudomonas aeruginosa, Streptococcus (group B), Candida albicans and Neisseria meningitidis.