Similarly, mice receiving tuberculosis subunit vaccines (LT70 [100] and MH [101]) in combination with recombinant adenovirus encoding fusion cytokines IL-7-Linker-IL-15 (rAd-IL-7-Linker-IL-15) regimen exhibited enhanced long-term immune responses and increased protective efficacy against the BCG challenge compared to the control cohorts. The gene discussed is IL15; the disease is tuberculosis.