High levels of IP-10 are found in the lymph nodes and tuberculous granulomas[20], in pleural effusions and broncoalveolar lavage [21], [22], in the serum of TB and TB-HIV co-infected patients experiencing the immune reconstitution syndrome[23], [24] and in PPD challenge of blood mononuclear and bronchoalveolar cells[24], [25]. This evidence concerns the gene CXCL10 and tuberculosis.