HSP90B2P and tuberculosis: Only the tuberculosis related M. bovis bacillus Calmette-Guérin (BCG) strain showed a specific hybridization, which is in agreement with our observation that 16 kDa hsp specific VHHs (A-23, A-44, A-50 and B-F10) showed binding to M. tuberculosis and M. bovis BCG but not to any other tested Mycobacterium species in ELISA (Fig. 3B).